The ( ) is the brain of the personal computer. A microprocessorB storageC keyboardD Printer
The ( ) is the brain of the personal computer.
A microprocessor
B storage
C keyboard
D Printer
相关考题：
Most project management leadership theories focus on all of the following except:A . Personal characteristics of the project managerB . The situation at handC . Personal traits of the subordinatesD . Behavioral styles of the project managerE . Usefulness of authority and power in leadership
● The personal computer or (72) is the smallest general-purpose computer.(72)A. terminalB. minicomputerC. microcomputerD. workstation
听力原文：W: With the convenience of bankcards, more and more people prefer bankcards to personal checks.M: I agree. People like bankcards because they offer greater safety and convenience than personal checks.Q: What can be inferred from the conversation?(20)A．A merchant doesn't know the balance before completing a sale.B．No security system has yet been devised for personal checks.C．A personal check is secure at the check stand.D．The clerk can examine all the bankcards.
听力原文：M: The rate on a personal loan is fixed according to the base rate at the time when the loan is made.W: But it is always higher than the base rate, isn't it?Q: What is determined when a personal loan is made?(14)A．Rate on the personal loan.B．Base rate of the bank.C．The amount of payment.D．Personal loan's time period.
Pharming is a scamming practice in which malicious code is installed on a personal computer or server, misdirecting users to (71)Web sites without their knowledge or consent. Pharming has been called "phishing without a lure".In phishing, the perpetrator sends out legitimate-(72)e-mails, appearing to come from some of the Web's most popular sites, in an effort to obtain personal and financial information from individual recipients. But in pharming, larger numbers of computer users can be(73)because it is not necessary to target individuals one by one and no conscious action is required on the part of the victim. In one form. of pharming attack, code sent in an e-mail modifies local host files on a personal computer. The host files convert URLs into the number strings that the computer uses to access Web sites. A computer with a compromised host file will go to the fake Web site even if a user types in the correct Internet address or clicks on an affected(74)entry. Some spyware removal programs can correct the corruption, but it frequently recurs unless the user changes browsing( 75 ).A．fewB．fraudulentC．normalD．structured
共用题干Learning DisabilitiesLearning disabilities are very common.They affect perhaps 1 0 percent of all children.Four times as many boys as girls have learning disabilities.Since about 1970,new research has helped brain scientists understand these problems better.Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things.There is no longer any question that all learning disabilities result from differences in the way the brain is organized.You cannot look at a child and tell if he or she has a learning disability.There is no outward sign of the disorder.So some researchers began looking at the brain itself to learn what might be wrong.In one study,researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.One involved cells in the left side of the brain,which control language.These cells normally are white.In the learning disabled person,however,these cells were gray.The researchers also found that many of the nerve cells were not in a line the way they should have been.The nerve cells were mixed together.The study was carried out under the guidance of Norman Geschwind,an early expert on learning disabilities, Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally.Probably,he said,nerve cells there did not connect as they should.So the brain was like an electrical device in which the wires were crossed.Other researchers did not examine brain tissue.Instead,they measured the brain's electrical activity and made a map of the electrical signals.Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston.Doctor Dully found large differences in the brain activity of normal children and those with reading problems.The differences appeared throughout the brain.Doctor Dully said his research is evidence that disabilities involve damage to a wide area of the brain,not just the left side.Scientists found that the brain cells of a learning-disabled person differ from those of a normal person in______.A:structure and functionB:color and functionC:size and arrangementD:color and arrangement
共用题干Learning DisabilitiesLearning disabilities are very common.They affect perhaps 1 0 percent of all children.Four times as many boys as girls have learning disabilities.Since about 1970,new research has helped brain scientists understand these problems better.Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things.There is no longer any question that all learning disabilities result from differences in the way the brain is organized.You cannot look at a child and tell if he or she has a learning disability.There is no outward sign of the disorder.So some researchers began looking at the brain itself to learn what might be wrong.In one study,researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.One involved cells in the left side of the brain,which control language.These cells normally are white.In the learning disabled person,however,these cells were gray.The researchers also found that many of the nerve cells were not in a line the way they should have been.The nerve cells were mixed together.The study was carried out under the guidance of Norman Geschwind,an early expert on learning disabilities, Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally.Probably,he said,nerve cells there did not connect as they should.So the brain was like an electrical device in which the wires were crossed.Other researchers did not examine brain tissue.Instead,they measured the brain's electrical activity and made a map of the electrical signals.Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston.Doctor Dully found large differences in the brain activity of normal children and those with reading problems.The differences appeared throughout the brain.Doctor Dully said his research is evidence that disabilities involve damage to a wide area of the brain,not just the left side.Which of the following is NOT mentioned in the passage?A:Learning disabilities may result from the unknown area of the brain.B:Learning disabilities may result from damage to a wide area of the brain.C:Learning disabilities may result from abnormal organization of the brain cells.D:Learning disabilities may result from problems in the left side of the brain.
共用题干Learning DisabilitiesLearning disabilities are very common.They affect perhaps 1 0 percent of all children.Four times as many boys as girls have learning disabilities.Since about 1970,new research has helped brain scientists understand these problems better.Scientists now know there are many different kinds of learning disabilities and that they are caused by many different things.There is no longer any question that all learning disabilities result from differences in the way the brain is organized.You cannot look at a child and tell if he or she has a learning disability.There is no outward sign of the disorder.So some researchers began looking at the brain itself to learn what might be wrong.In one study,researchers examined the brain of a learning-disabled person who had died in an accident. They found two unusual things.One involved cells in the left side of the brain,which control language.These cells normally are white.In the learning disabled person,however,these cells were gray.The researchers also found that many of the nerve cells were not in a line the way they should have been.The nerve cells were mixed together.The study was carried out under the guidance of Norman Geschwind,an early expert on learning disabilities, Doctor Geschwind proposed that learning disabilities resulted mainly from problems in the left side of the brain. He believed this side of the brain failed to develop normally.Probably,he said,nerve cells there did not connect as they should.So the brain was like an electrical device in which the wires were crossed.Other researchers did not examine brain tissue.Instead,they measured the brain's electrical activity and made a map of the electrical signals.Frank Dully experimented with this technique at Children's Hospital Medical Center in Boston.Doctor Dully found large differences in the brain activity of normal children and those with reading problems.The differences appeared throughout the brain.Doctor Dully said his research is evidence that disabilities involve damage to a wide area of the brain,not just the left side.According to the passage we can conclude that further researches should be made______.A:to help learning-disabled children to develop their intelligenceB:to study how children learn to read and write,and use numbersC:to investigate possible influences on brain development and organizationD:to explore how the left side of the brain functions in language learning
共用题干第二篇Exercise and BrainJust as exercise strengthens the heart and lungs,bones and muscles,it may also power up the brain.A succession of scientific studies of animals implies that physical activity has a positive effect on mental functioning."It's clear that the brain benefits from exercise,"says brain scientist William Greenough of the University of Illinois at Urbana-Champaign.His studies with rats have demonstrated two primary effects of activity:Vigorous physical exercise provides the brain with more fuel,and skill-based ex-ercise increases the formation of connections in the brain, which, according to the proposals of some scientists,may make the brain better able to process information.In one experiment,laboratory rats were separated into three groups.One group was exercised by running inside an automatic wheel,a second group improved their skills in a complicated obstacle course,and a third group was inactive."The animals that learned to go through the obstacle course exhibited a greater number of brain connections than the animals in the exercised or inactive groups,"Greenough said."In contrast, the animals that exercised inside the automatic wheel possessed a greater density of blood vessels in the brain than did either of the other two groups of animals."Learning a new dance step may boost the brain in the same way that learning a language can, he says.And if the dance is a good physical exercise as well,the benefits multiply.Young brains may be especially able to boost brain power through exercise,suggested another of Greenough's experiments that showed the most significant changes in the brain occurred among rats that had been exercised when very young.And while animals aren't people,he says it is logical to make the inference that an effect found in rats may also apply to humans.Human studies have focused primarily on older adults and suggest that regular exercise can improve the speed with which the brain processes information.Measurements made by Arthur Kramer at the University of Illinois demonstrated that inactive adults,aged 63 to 82,could hit buttons faster in response to a tone after they went through a 10-week water exercise course.A corresponding control group that didn't exercise showed no improvement.According to passage,what can not boost the brain?A:A new dance step.B:A dance which is a good physical exercise as well.C:Running on an automatic wheel.D:Being inactive inside.
Write down your name, boarding time and （个人物品）（）,please.A、personal luggageB、personal effectsC、A or BD、A+B
下面哪一个是PLC的全称（）。A、PROGRAMMABLE LOGIC COMPUTERB、PROGRAMMABLE LOGIC CONTROLLERC、PERSONAL LOGIC COMPUTERD、PERSONAL LOGIC CONTROLLER
A customer has a question about the repairs needed for their desktop computer. While asking their question to a technician, the technician receives a personal phone call on their cell phone. Which of the following should the technician do NEXT?（）A、Ask the customer to wait and answer the phone call.B、Talk on the phone while listening to the customer.C、Hand the phone to a coworker to answer the call.D、Silence the phone and then listen to the customer.
You are a desktop administrator for your company. A company user reports that he is unable to use his Bluetooth-enabled mobile phone with his Bluetooth-enabled Windows XP Professional computer. He is trying to play audio from the phone through the speakers on his computer. You verify that other Bluetooth devices work properly with the user’s computer. You test the speakers to make sure they are in working order. You also verify that the mobile phone can send output to a computer. You then discover that the phone cannot detect the computer.You need to ensure that the user can use the phone with his computer. What should you do？（）A、Place the phone in Bluetooth discovery mode.B、Place the user’s computer in Bluetooth discovery mode.C、Add the phone and the computer to the same Bluetooth Personal Area Network （PAN）.D、Install mobile phone synchronization software on the user’s computer.
You install windows 2000 Professional on a new dual processor Pentium III computer. The system BIOS is APM compliant. When you attempt to shutdown the computer, the shut down dialog box remains on the screen and the power remains on. What should you do?（）A、Restart the computer. Disable the AMP in the system BIOS restart the computer.B、Restart the computer. Use the power options in control panel to enable APM and restart the computer.C、Restart the computer. Use the power options in control panel to enable hibernate support then restart.D、Restart the computer. Use the power options in control panel to create a different power scheme then restart.E、Windows 2000 does not support APM on computers with multiple processors.
You install Windows 2000 Professional on a new APM-compliant portable computer. You notice that whenever you attempt to shut down the computer, the Windows 2000 shutdown screen remains on the screen as the power remains on. You attempt to shut off the computer by using Power Button, but you want the computer to shut off when Windows 2000 Professional shuts down. What should you do? （）A、Restart the computer, disable APM in the system BIOS, and then restart the computer. B、Restart the computer, use power options in control panel to enable APM, and restart the computer. C、Restart the computer, use power options in control panel to enable hibernate support, and then restart the computer. D、Restart the computer, use power options in control panel to create a different power scheme, and then restart the computer.
单选题You have a computer that runs Windows XP Professional. You use Microsoft Outlook Express to download e-mail messages. You need to copy the e-mail messages, Outlook Express settings, and Internet Explorer settings to a new computer that runs Windows XP Professional. What should you do?（）ACopy all *.dbx files from the old computer to the new computer. BEstablish a Remote Assistance session from the old computer to the new computer.CBack up the system state on the old computer. Restore the system state on the new computer. DRun the File and Settings Transfer Wizard on the old computer. Run the File and Settings Transfer Wizard on the new computer.
单选题According to this passage, _____.Athe game plan for keeping brain cells sparking doesn’t work for everyoneBDr. Small’s memory tests can show you what to do about brain agingCDr. Small’s advice can help us fight brain aging effectivelyDour brains can reconstruct memories themselves
单选题AThere is no evidence showing that memory aids are invalid.BHuman beings’ brain functions mainly through memory aids in an effective way.CMemory aids encourage an organised approach which helps the brain function effectively.DMemory aids have little effect on the brain.
单选题According to Dr. Small, _____.Aleft-handers may start brain aging later than right-handers doBlearning a foreign language does not help to keep our brain from getting oldCdoing crossword puzzles is a good way to keep us from memory lossDmental exercises plus healthy diet alone cannot keep us from brain aging
单选题The author uses the example of a monkey to argue that robots are ______.Aexpected to copy human brain in internal structureBable to perceive abnormalities immediatelyCfar less able than human brain in focusing on relevant informationDbest used in a controlled environment
单选题Why is a woman better at learning foreign languages than a man?AThe area of the left side of a woman’s brain for language learning develops better than that of a man’s.BThe right side of a woman’s brain for language develops better than that of a man’s.CThe area of the left side of a woman’s brain for feelings develops better than that of a man’s.DThe area of the right side of a woman’s brain fit for seeing in the dark develops better than that of a man’s.
单选题Which of the following is the best revision of the underlined portion of sentence 8(reproduced below)?You have probably had the experience of thinking about a paper or a math problem for so long that it’s like one’s brain gets frozen.Ait seems that your brain gets frozenBone’s brain gets frozenCyour brain seems to freezeDyour brains seem to freezeEone’s brain seems to freeze