Thedefaultbehaviorofswitchingtotheshortestpathtreeassoonasanewsourceisdetectedonthesharedtreecanbedisabledbysettingthevalueintheippimspt－thresholdcommandto"zero."() A.loopguardB.stormcontrolC.stormsuppressionD.broadcastsuppressionE.BPDUguard
Thedefaultbehaviorofswitchingtotheshortestpathtreeassoonasanewsourceisdetectedonthesharedtreecanbedisabledbysettingthevalueintheippimspt－thresholdcommandto"zero."()
A.loopguard
B.stormcontrol
C.stormsuppression
D.broadcastsuppression
E.BPDUguard
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Passage TwoQuestions 26 to 30 are based on the following passage.The electromagnet was invented in England by William Sturgeon，who took an iron rod and bent it into the shape of a horseshoe. This “horseshoe” was coated with varnish and a layer of copper wire was wrapped around it. An electric current was passed through the wire，thus making the rod magnetic. The rod was now，because of magnetic attraction，able to support nine pounds of iron. In the US，a scientist named Joseph Henry improved on Sturgeon's electromagnet by insulating the copper wine with silk. He was able to wrap many turns of wire around an iron core without danger of short circuits between the turns. His magnet could hold 2,300 pounds. This experiment prompted Henry to try his hand at converting magnetism into electricity. First he coiled some insulated wire around an iron bar. connecting both ends of the wire to a galvanometer(电流表). The iron bar was placed across the poles of the electromagnet. Then the coil of the electromagnet was connected to a battery. The galvanometer indicated a voltage，then dropped to zero. Henry signaled his assistant to disconnect the coil. The galvanometer showed that once again a voltage had been produced，although this time in the opposite direction. The principle of electromagnetic induction had thus been discovered. Unfortunately for Joseph Henry he did not publish his findings and someone else(Faraday)got the credit for the discovery.The principle of electromagnetic was discovered by______.A. William SturgeonB. Joseph HenryC. FaradayD. someone else
20. Among employees __________, the support for the change is zero. A. at length B. at last C. at large D. at best
共用题干The Robot ManAccording to Hans Moravec,universal robots will take over all the physical activities that we engage in,leaving us with little to do.Moravec sees four generations on the road to true universal robots. The first generation will be here by 2010 and will consist of free-ranging robots that can navigate by building an internal mental map of their surroundings.In new situations they'll be able to adapt,unlike today's mobile industrial robots.These robots will have the computing power to cope with simple speech and text recognition,and will be used for tasks such as domestic clean-ing.The second generation will arrive around 2020 and will be distinguished by the ability to learn .Second generation robots are programmed with sets of primitive tasks and with feedback that provide"pleasure"and"pain"stimuli .For example,a collision provokes a negative response,a completed task would be positive.Move forward another ten years to 2030 and you get to generation three.This robot can build internal simulations of the world around it. Before beginning a task,it can imagine what will happen in order to predict problems.If it has a free moment,it can replay past experiences and try variations in order to find a better way of如ing things next time .It could even observe a person or another robot performing a task and learn by imitation.For the first time,we have here a robot that can think.By the time we get to generation four in 2040,Moravec predicts that robots will be able to: match human reasoning and behaviour;generalise abstract ideas from specific experience;and, conversely,compile detailed plans of action from general commands such as"earn a living"or "make more robots".The Moravec manifesto（宣告）runs something like this. As robots start to become useful in generation one,they'll begin to take on many tasks in industry.Driven by the availability of this cheap and tireless labour force,the economy will boom and the demand for robots will grow so rapidly that they will soon become lowcost commodity items.So much so that they'll move into the home,where the domestic robot will relieve us of many chores.With increasing automation in generations two and three,the length of the average working day will plummet,eventually to near zero. Most people will be unemployed as robots take over not just primary industry,but the service economy too.Moravec sees the fourth generation as an opportunity to surpass our human limitations.These future machines will be our"mind children".Like biological children of previous generations,they will embody humanity's best hope for a long-term future. What does Moravec think of these future robots?A: They will look like previous biological children.B: They will be humans' mind-children.C: They will create a dangerous world.D: They will rule the world.
共用题干The Robot ManAccording to Hans Moravec,universal robots will take over all the physical activities that we engage in,leaving us with little to do.Moravec sees four generations on the road to true universal robots. The first generation will be here by 2010 and will consist of free-ranging robots that can navigate by building an internal mental map of their surroundings.In new situations they'll be able to adapt,unlike today's mobile industrial robots.These robots will have the computing power to cope with simple speech and text recognition,and will be used for tasks such as domestic clean-ing.The second generation will arrive around 2020 and will be distinguished by the ability to learn .Second generation robots are programmed with sets of primitive tasks and with feedback that provide"pleasure"and"pain"stimuli .For example,a collision provokes a negative response,a completed task would be positive.Move forward another ten years to 2030 and you get to generation three.This robot can build internal simulations of the world around it. Before beginning a task,it can imagine what will happen in order to predict problems.If it has a free moment,it can replay past experiences and try variations in order to find a better way of如ing things next time .It could even observe a person or another robot performing a task and learn by imitation.For the first time,we have here a robot that can think.By the time we get to generation four in 2040,Moravec predicts that robots will be able to: match human reasoning and behaviour;generalise abstract ideas from specific experience;and, conversely,compile detailed plans of action from general commands such as"earn a living"or "make more robots".The Moravec manifesto（宣告）runs something like this. As robots start to become useful in generation one,they'll begin to take on many tasks in industry.Driven by the availability of this cheap and tireless labour force,the economy will boom and the demand for robots will grow so rapidly that they will soon become lowcost commodity items.So much so that they'll move into the home,where the domestic robot will relieve us of many chores.With increasing automation in generations two and three,the length of the average working day will plummet,eventually to near zero. Most people will be unemployed as robots take over not just primary industry,but the service economy too.Moravec sees the fourth generation as an opportunity to surpass our human limitations.These future machines will be our"mind children".Like biological children of previous generations,they will embody humanity's best hope for a long-term future. Which of the following statements is true of the future robots?A: They will relieve us of many chores.B: They will take over the information industry.C: They will never surpass us.D: They will become high-cost commodity items.
Passage 1Earlier this year, when America first sneezed, the European Central Bank （along with most private-sector economists） argued that the euro area was insulated from America's slowdown and had little to worry about. This seems to have wrong. In Germany there are fears about recession as business investment and retail sales tumble. Recent figures confirmed that Germany’s GDP stagnated in the second quarter. Italy's GDP fell in the second quarter, and although growth has held up better in France and Spain, the growth in the euro area as a whole was close to zero in the quarter. Nobody is forecasting an actual recession in the euro area this year, but it is no longer expected to provide an engine for world growth.As for Japan, it is probably already in recession. Japan's GDP grew slightly in the first quarter. Persistent deflation continues to be a severe problem. A revised measure of Japan’s consumer-price index, to be published soon, is likely to show that deflation is worse than had been thought.What was the economic situation in France and Spain?A. Much better B. Somewhat better.C. Close to zero. D. Much worse.
共用题干The Cold PlacesThe Arctic is a polar region.It surrounds the North Pole.Like Antarctica,the Arctic is a land of ice and snow.Antarctica holds the record for a low temperature reading-125 degrees Fahrenheit below zero. Reading of 85 degrees below zero is common in both the Arctic and Antarctica.Winter temperatures average 30 degrees below zero in the Arctic .At the South Pole the winter average is about 73 degrees below zero.One thing alone makes it almost impossible for men to live in Antarctica and in parts of the Arctic .This one thing is the low temperature-the killing chill of far North and the polar South.To survive,men must wear the warmest possible clothing. They must build windproof shelters .They must keep heaters going at all times.Not ever for a moment can they be unprotected against the below-zero temperatures.Men have a way of providing for themselves.Polar explorers wrap themselves in warm coats and furs .The cold makes life difficult. But the explorers can stay alive.What about animals?Can they survive?Do we find plants?Do we find life in the Arctic and in Antarctica?Yes,we do. There is life in the oceans.There is life on land.Antarctica,as we have seen,is a cold place indeed.But this has not always been the case.Expedition scientists have discovered that Antarctica has not always been a frozen continent. At one time the weather in Antarctica may have much like our own.Explorers have discovered coal in Antarctica. This leads them to believe that Antarctica at one time was a land of swamps and forests.Heat and moisture must have kept the trees in the forests alive.At one time,the weather in Antarctica was so warm and damp that trees grew there.A: RightB: WrongC: Not mentioned
资料：Children back at school, nights slowly starting to draw in and the weather more changeable. The seasons are turning and after an eerily calm summer for financial markets, there's a whiff of uncertainty in the air. Bond yields are up from their lows, and the relentless migration of global capital towards any asset, anywhere, with some yield, is slowing.The concern is the growing awareness of central banks' waning ability to boost growth with ever-lower interest rates and ever-bigger purchases of assets. The debate about if, when and how slowly the US Federal Reserve will raise interest drags on, but if downward pressure on global bond yields from the European Central Bank （ECB） and the Bank of Japan's （BOJ） largesse is drawing to a close, that's a bigger milestone for markets. A world of higher bond yields is one where the pressure to seek yield in exotic places is diminished. It's also a world where the capital gains that accompanied falling yields become capital losses and investors question the merit of bonds over cash （or equities）.This search for yield in exotic places has, since the end of January, helped the Brazilian real gain more than 20% against the US dollar, with the Russian rouble managing almost as much. The dollar, itself, has fallen back is by 7.5% fall in trade-weighted terms, unwinding nearly 40% of the gains it has seen since mind-2014. There's no need to panic about bond yields rising, because rate rises in Japan or the Eurozone are years away and the Fed's still tinkering. But 10-year yields on both German and Japanese government bond yields fell below zero for the first time in late June. They have been edging higher through the summer. It's almost as if investors really aren't that keen on tying money up at negative yields for that long – why not stick to cash?In the US, estimates of "neutral" real interest rates are tumbling to around zero. Estimates of how much slack there is left in the labour market are being revised up and after five years when productivity growth has averaged a measly 0.5%, there's widespread acceptance that it's unlikely to accelerate by magic. But even if we take all of this into account, markets are now pricing in an extraordinarily slow pace of rate hikes by the Fed – from their current 0.25-0.5% range, to about 0.75% by the end of 2017 and to 1% by the end of 2018.GDP growth still oscillates around 2%, the Fed's favoured measure of inflation is at 1.6% and the unemployment rate is trending lower. The pricing of the future path of short term rates seems too low even for the "new normal" economic environment. All of these currencies have gained against the pound and I can't see that changing. Too much importance should not be placed on either the collapse in confidence immediately after the vote to leave the EU or the subsequent bounce.The economic impact of leaving the EU will be felt through delayed investment decisions as a result of uncertainty about when and on what terms it happens. A debilitating rather than a corrosive impact on the economy will be seen in slower, but positive growth. It will also be felt in further （slower） sterling weakness. The Bank of England has already cut policy rates from 0.5% to 0.25%, and there's more to come from both the Bank and the pound over the next year. A 5% fall from here would take the pound close to €1.1, and we could see it fall below $1.25 as the Federal Reserve edges rates higher. According to the last paragraph which of the followings is Not true?After Britain leaving the E.U the investment decision of investors has been affectedA.After Britain leaving the E.U the investment decision of investors has been affectedB.After Britain leaving the E.U, the value of the pound will be seen weakened furtherC.After Britain leaving the E.U, the fed takes this opportunity to raise the rateD.After Britain leaving the E.U, the Bank of England has already cut policy rates to 0.25%
资料：Children back at school, nights slowly starting to draw in and the weather more changeable. The seasons are turning and after an eerily calm summer for financial markets, there's a whiff of uncertainty in the air. Bond yields are up from their lows, and the relentless migration of global capital towards any asset, anywhere, with some yield, is slowing.The concern is the growing awareness of central banks' waning ability to boost growth with ever-lower interest rates and ever-bigger purchases of assets. The debate about if, when and how slowly the US Federal Reserve will raise interest drags on, but if downward pressure on global bond yields from the European Central Bank （ECB） and the Bank of Japan's （BOJ） largesse is drawing to a close, that's a bigger milestone for markets. A world of higher bond yields is one where the pressure to seek yield in exotic places is diminished. It's also a world where the capital gains that accompanied falling yields become capital losses and investors question the merit of bonds over cash （or equities）.This search for yield in exotic places has, since the end of January, helped the Brazilian real gain more than 20% against the US dollar, with the Russian rouble managing almost as much. The dollar, itself, has fallen back is by 7.5% fall in trade-weighted terms, unwinding nearly 40% of the gains it has seen since mind-2014. There's no need to panic about bond yields rising, because rate rises in Japan or the Eurozone are years away and the Fed's still tinkering. But 10-year yields on both German and Japanese government bond yields fell below zero for the first time in late June. They have been edging higher through the summer. It's almost as if investors really aren't that keen on tying money up at negative yields for that long – why not stick to cash?In the US, estimates of "neutral" real interest rates are tumbling to around zero. Estimates of how much slack there is left in the labour market are being revised up and after five years when productivity growth has averaged a measly 0.5%, there's widespread acceptance that it's unlikely to accelerate by magic. But even if we take all of this into account, markets are now pricing in an extraordinarily slow pace of rate hikes by the Fed – from their current 0.25-0.5% range, to about 0.75% by the end of 2017 and to 1% by the end of 2018.GDP growth still oscillates around 2%, the Fed's favoured measure of inflation is at 1.6% and the unemployment rate is trending lower. The pricing of the future path of short term rates seems too low even for the "new normal" economic environment. All of these currencies have gained against the pound and I can't see that changing. Too much importance should not be placed on either the collapse in confidence immediately after the vote to leave the EU or the subsequent bounce.The economic impact of leaving the EU will be felt through delayed investment decisions as a result of uncertainty about when and on what terms it happens. A debilitating rather than a corrosive impact on the economy will be seen in slower, but positive growth. It will also be felt in further （slower） sterling weakness. The Bank of England has already cut policy rates from 0.5% to 0.25%, and there's more to come from both the Bank and the pound over the next year. A 5% fall from here would take the pound close to €1.1, and we could see it fall below $1.25 as the Federal Reserve edges rates higher.According to the the passage which of the followings is Not true?A.In recent years central banks adopt the method of lower interest rates and asset purchases to promote economic growth but now such ability of central banks have become increasingly weakerB.Investors doubt that the yields will decline, because the bond prices of financial market are fallingC.In the first half of this year global financial markets are as changeable as the weather changesD.The 10-year yields German and Japanese government bond have been moving up slowly through the summer
资料：Children back at school, nights slowly starting to draw in and the weather more changeable. The seasons are turning and after an eerily calm summer for financial markets, there's a whiff of uncertainty in the air. Bond yields are up from their lows, and the relentless migration of global capital towards any asset, anywhere, with some yield, is slowing.The concern is the growing awareness of central banks' waning ability to boost growth with ever-lower interest rates and ever-bigger purchases of assets. The debate about if, when and how slowly the US Federal Reserve will raise interest drags on, but if downward pressure on global bond yields from the European Central Bank （ECB） and the Bank of Japan's （BOJ） largesse is drawing to a close, that's a bigger milestone for markets. A world of higher bond yields is one where the pressure to seek yield in exotic places is diminished. It's also a world where the capital gains that accompanied falling yields become capital losses and investors question the merit of bonds over cash （or equities）.This search for yield in exotic places has, since the end of January, helped the Brazilian real gain more than 20% against the US dollar, with the Russian rouble managing almost as much. The dollar, itself, has fallen back is by 7.5% fall in trade-weighted terms, unwinding nearly 40% of the gains it has seen since mind-2014. There's no need to panic about bond yields rising, because rate rises in Japan or the Eurozone are years away and the Fed's still tinkering. But 10-year yields on both German and Japanese government bond yields fell below zero for the first time in late June. They have been edging higher through the summer. It's almost as if investors really aren't that keen on tying money up at negative yields for that long – why not stick to cash?In the US, estimates of "neutral" real interest rates are tumbling to around zero. Estimates of how much slack there is left in the labour market are being revised up and after five years when productivity growth has averaged a measly 0.5%, there's widespread acceptance that it's unlikely to accelerate by magic. But even if we take all of this into account, markets are now pricing in an extraordinarily slow pace of rate hikes by the Fed – from their current 0.25-0.5% range, to about 0.75% by the end of 2017 and to 1% by the end of 2018.GDP growth still oscillates around 2%, the Fed's favoured measure of inflation is at 1.6% and the unemployment rate is trending lower. The pricing of the future path of short term rates seems too low even for the "new normal" economic environment. All of these currencies have gained against the pound and I can't see that changing. Too much importance should not be placed on either the collapse in confidence immediately after the vote to leave the EU or the subsequent bounce.The economic impact of leaving the EU will be felt through delayed investment decisions as a result of uncertainty about when and on what terms it happens. A debilitating rather than a corrosive impact on the economy will be seen in slower, but positive growth. It will also be felt in further （slower） sterling weakness. The Bank of England has already cut policy rates from 0.5% to 0.25%, and there's more to come from both the Bank and the pound over the next year. A 5% fall from here would take the pound close to €1.1, and we could see it fall below $1.25 as the Federal Reserve edges rates higher.The word “tumbling” in the sixth paragraph refers to ________fallingA.fallingB.pushingC.keepingD.changing
The TTL field was originally designed to hold a time stamp, which was decremented by each visited router. The datagram was ( ) when the value became zero. However, for this scheme, all the machines must have synchronized clocks and must know how long it takes for a datagram to go from one machine to another. Today, this field is used mostly to control the ( ) number of hops (routers) visited by the datagram. When a source host sends the datagram, it ( ) a number in this field. Each router that processes the datagram decrements this number by 1. If this value, after being decremented, is zero, the router discards the datagram.This field is needed because routing tables in the Internet can become corrupted.A datagram may travel between two or more routers for a long time without ever getting delivered to the (请作答此空).This field limits the ( ) of a datagram.A.switchB.routerC.source hostD.destination host
The default behavior of switching to the shortest path tree as soon as a new source is detected on the shared tree can be disabled by setting the value in the ip pim spt-threshold command to "zero." （）A、loop guardB、storm controlC、storm suppressionD、broadcast suppressionE、BPDU guard
You deploy a mobile messaging solution with Microsoft Exchange Server 2003 Service Pack 2. All remote users use mobile devices that run Microsoft Windows Mobile 5.0 with Microsoft Messaging and Security Feature Pack （MSFP）. A remote user reports the loss of a Windows Mobilebased device. You need to ensure that the information from the Microsoft Exchange ActiveSync （EAS） server is no longer available on the Windows Mobilebased device. What should you do？（）A、Recreate the Active Directory remote user account.B、Perform a remote wipe on the Windows Mobilebased device of the remote user.C、On the Properties tab of the remote user account， disable the user-initiated synchronization option.D、On the Device Security Settings tab， configure the Wipe device after failed attempts option to a value of zero.
问答题Practice 7 Average household debt in the United States is currently 130 percent of average household income. The U. S. household savings rate is close to zero. Consumer confidence has plummeted with the value of 401(k) plans and retirement nest eggs. Car sales are at a fifteen-year low. And credit card defaults look like the next shoe to drop as cash-strapped Americans have run up credit card debt to postpone the day of reckoning. Too many Americans have been expressing the Dream through the acquisition of stuff. Americans need a refresher course on the American dream. The Constitution speaks of life, liberty, and the pursuit of happiness, not an automatic chicken in every pot. The American Dream embraced by immigrants over the past two centuries has been the opportunity to set one’s own goals and pursue them honestly to the limits of one’s ambition and ability. Too many Americans have been expressing the Dream through the acquisition of stuff. Others see the Dream as raising a family in a land that delivers Franklin Roosevelt’s four freedoms. Still others dream of their children accessing the highest possible level of education, living healthy lives, being good citizens in their communities.
单选题You work as a database administrator for Certkiller .com. Users in the Certkiller .com PROD database complain about the slow response of transactions. While investigating the reason you find that the transactions are waiting for the undo segments to be available， and undo retention has been set to zero. What would you do to overcome this problem？（）AIncrease the undo returnBCreate more undo segmentsCCreate another undotablespaceDIncrease the size of the undotablespace
单选题Users in your PROD database complain about the slow response of the transactions. While investigating the reason， you find that the transactions are waiting for the undo segments to be available， and undo retention has been set to zero. What would you do to overcome this problem？（）Aincrease the undo retentionBcreate more undo segmentsCcreate another undo tablespaceDincrease the size of the undo tablespace
单选题You are maintaining an OLTP database in Oracle10g. You set the value of the LOG_ARCHIVE_TRACE parameter to zero. What is the impact of this setting？ （）A The trace files will be disabled only for a specific session.B Tracing will be disabled for a client identifier.C Tracing will be disabled only for the ARCn process.D The SQL Trace facility will be disabled for the instance.
单选题You work as a database administrator for Supportcenter.cn. Users in the Supportcenter.cn PROD database complain about the slow response of transactions. While investigating the reason you find that the transactions are waiting for the undo segments to be available， and undo retention has been set to zero. What would you do to overcome this problem？（）AIncrease the undo returnBCreate more undo segmentsCCreate another undotablespaceDIncrease the size of the undo tablespace
单选题You are maintaining an OLTP database in Oracle10g. You find that the database is generating a large number of trace files. You decide to disable the trace files generated by the ARCn background process. Which action will enable you to disable the trace files generated by the ARCn background process？（）A Remove the LOG_ARCHIVE_DEST parameter from the init.ora file.B Set the value of the SQL_TRACE parameter to FALSE in the init.ora file.C Use the DBMS_MONITOR.SESSION_TRACE_DISABLE procedure.D Set the value of the LOG_ARCHIVE_TRACE initialization parameter to zero.
单选题You deploy a mobile messaging solution with Microsoft Exchange Server 2003 Service Pack 2. All remote users use mobile devices that run Microsoft Windows Mobile 5.0 with Microsoft Messaging and Security Feature Pack （MSFP）. A remote user reports the loss of a Windows Mobilebased device. You need to ensure that the information from the Microsoft Exchange ActiveSync （EAS） server is no longer available on the Windows Mobilebased device. What should you do？（）ARecreate the Active Directory remote user account.BPerform a remote wipe on the Windows Mobilebased device of the remote user.COn the Properties tab of the remote user account， disable the user-initiated synchronization option.DOn the Device Security Settings tab， configure the Wipe device after failed attempts option to a value of zero.
问答题Practice 3 阅读下面的对话，根据其内容写一篇有关paper用途的说明文。 要求： 1. 所写短文应与对话相关内容意义相符，涵盖其要点； 2. 用你自己的语言表达，可改写对话中的句子，但不可照抄原句。 注意： 1. 词数80词左右，开头已为你写好； 2. 请将短文直接写在答题卡上。 Marry: Last time we talked about the history of paper. But do you know what paper is used for? Peter: Oh, that’s an easy question. Paper is used for newspapers, books, writing paper, envelopes, wrapping paper, paper bags... Peter: Yes, actually only half of the paper that is made is used for such purposes. Have you got an idea about other uses of paper? Marry: No, I’m afraid not. Peter: There are many other uses. Paper is very good for keeping you warm. Houses are often insulated（使绝缘；使隔热） with paper. You have perhaps seen homeless people asleep on a large number of newspapers. Marry: Yes, I have. So they are insulating themselves against cold. Peter: You are right. In Finland, it is very cold in winter. It is sometimes 40 degrees Centigrade below zero. The farmers wear paper boots in the snow. Nothing could be warmer. Marry: Oh, that’s unbelievable. Peter: Now more and more things are made of paper. We have had paper plates, cups and dishes for a long time. But now we hear that chairs, tables, and even beds can be made of paper. Marry: Fascinating! Peter: People have made paper boats, but they have not yet made paper planes or cars. Just wait, they probably will. Marry: Well, you have become an expert on paper. How do you know all that? Peter: You know. I’m preparing for a presentation, so I’ve looked up a lot of material. Marry: Well, I’m sure your presentation will go really well. Peter: Thank you. More and more things are made of paper.
单选题Passage2 Questions 6 to 10 are based on the following passage. Salt is as necessary to life as water. In many areas of Africa people once drank the urine（尿）of animals because they had no other source of salt. Without salt, human beings die. The human body demands that the amount of salt in the blood always stay the same. When the body does not get enough salt, it protects itself by letting less salt leave the body in. urine and sweat. But it cannot reduce this output to zero. Some salt is always escaping. On a completely saltless diet, like that of some people in Africa, the body steadily loses small amounts of salt through the kidneys（肾） and sweat glands(腺). It then tries to adjust to this loss by speeding up its secretion(分泌) of water. (78) In this way, the body attempts to keep the amount of salt in the blood at the necessary level. The result is a slow drying up of body and, finally, death. The person dies of thirst. In cases where there is little or no water to drink, the body tries to do the opposite thing.Again, it must keep the salt level in the blood constant. Because it has little water, it attempts to stop water from leaving the body and to increase its secretion of. salt. But, as with the escaping salt, it cannot be completely successful. Some water still leaves and the person eventually dies of thirst. In short, the body's normal needs for salt and for water are both parts of the same important need to keep the salt level in the blood constant.7 In order to adjust to the loss of salt, the body______.Aloses some bloodBspeeds up its secretion of waterCspeeds up its secretion of saltDis drying up slowly
问答题题目要求： The essay gives you an opportunity to show how effectively you can develop and express ideas. You should, therefore, take care to develop your point of view, present your ideas logically and clearly, and use language precisely. Your essay must be written on the lines provided on your answer sheet—you will receive no other paper on which to write. You will have enough space if you write on every line, avoid wide margins, and keep your handwriting to a reasonable size. Remember that people who are not familiar with your handwriting will read what you write. Try to write or print so that what you are writing is legible to those readers. Important Reminders: ·A pencil is required for the essay. An essay written in ink will receive a score of zero. ·Do not write your essay in your test book. You will receive credit only for what you write on your answer sheet. ·An off-topic essay will receive a score of zero. ·If your essay does not reflect your original and individual work, your test scores maybe canceled. You have twenty-five minutes to write an essay on the topic assigned below.Practice 1 Think carefully about the issue presented in the following excerpt and the assignment below. The liberally educated person is one who is able to resist the easy and preferred answers, not because he is obstinate but because he knows others worthy of Consideration. —Allan Bloom Assignment: What is one important easy and preferred answer that we should resist? That is, what dangerous misconception do people commonly hold? Write an essay in which you answer this question and support your position logically with examples from literature, the arts, history, politics, science and technology, current events, or your experience or observation.
单选题After implementing full Oracle Data Redaction, you change the default value for the NUMBER data type as follows: After changing the value, you notice that FULL redaction continues to redact numeric data with zero. What must you do to activate the new default value for numeric full redaction?（）ARe-enable redaction policies that use FULL data redaction.BRe-create redaction policies that use FULL data redaction.CRe-connect the sessions that access objects with redaction policies defined on them.DFlush the shared pool.ERestart the database instance
问答题Passage 1 (1)______ There is a tendency to see Japan as a harbinger of all that is doomed in the economies of the euro zone and America--even though figures released on November 14th show its economy grew by an annualised 6% in the third quarter, rebounding quickly from the March tsunami and nuclear disaster. Look dispassionately at Japan's economic performance over the past ten years, though, and "the second lost decade", if not the first, is a misnomer. Much of what tarnishes Japan's image is the result of demography—more than half its population is over 45—as well as its poor policy in dealing with it. (2)______ In aggregate, Japan's economy grew at half the pace of America's between 2001 and 2010. Yet if judged by growth in GDP per person over the same period, then Japan has outperformed America and the euro zone. In part this is because its population has shrunk whereas America's population has increased. Though growth in labour productivity fell slightly short of America's from 2000 to2008, total factor productivity, a measure of how a country uses capital and labour, grew faster, according to the Tokyo-based Asian Productivity Organisation. Japan's unemployment rate is higher than in 2000, yet it remains about half the level of America and Europe. Besides supposed stagnation, the two other curses of the Japanese economy are debt and deflation. Yet these also partly reflect demography and can be overstated. People often think of Japan as an indebted country. In fact, it is the world's biggest creditor nation, boasting 253 trillion ($3.3 trillion) in net foreign assets. To be sure, its government is a large debtor; its net debt as a share of GDP is one of the highest in the OECD. (3)______ Social security expenditure doubled as a share of GDP between 1990 and 2010 to pay rising pensions and health-care costs. Over the same period tax revenues have shrunk. (4)______ That gives it plenty of room to manoeuvre. Takatoshi Ito, an economist at the University of Tokyo, says increasing the consumption tax by 20 percentage points from its current 5%—putting it at the level of a high-tax European country—would raise 50 trillion and immediately wipe out Japan's fiscal deficit. That sounds draconian. But here again, demography plays a role. Officials say the elderly resist higher taxes or benefit cuts, and the young, who are in a minority, do not have the political power to push for what is in their long-term interest. David Weinstein, professor of Japanese economy at Columbia University in New York, says the elderly would rather give money to their children than pay it in taxes. Ultimately that may mean that benefits may shrink in the future. "If you want benefits to grow in line with income, as they are now, you need a massive increase in taxes of about10% of GDP," he says. (5)______ After all, falling prices give savers—most of whom are elderly—positive real yields even when nominal interest rates are close to zero. Up until now, holding government bonds has been a good bet. Domestic savers remain willing to roll them over, which enables the government to fund its deficits. Yet this comes at a cost to the rest of the economy. In short, Japan's economy works better for those middle-aged and older than it does for the young. But it is not yet in crisis, and economists say there is plenty it could do to raise its potential growth rate, as well as to lower its debt burden.[A] Falling tax revenues are a problem. The flip side, though, is that Japan has the lowest tax take of any country in the OECD, at just 17% of GDP.[B] Demography helps explain Japan's stubborn deflation, too, he says.[C] Even so, most Japanese have grown richer over the decade.[D] However, the public debt has been accrued not primarily through wasteful spending or "bridges to nowhere", but because of aging, says the IMF.[E] Young people also express their strong dissatisfaction towards economical injustice.[F] The Japanese say they suffer from an economic disease called “structural pessimism”. Overseas too,[G] In fact, the financial situation is not that bad during the last decade.
多选题The default behavior of switching to the shortest path tree as soon as a new source is detected on the shared tree can be disabled by setting the value in the ip pim spt-threshold command to "zero." （）Aloop guardBstorm controlCstorm suppressionDbroadcast suppressionEBPDU guard