The ______ has a built-in world map; most areas are displayed on a scale of 4000 nm from the top to the bottom of the screen，and can be zoomed in to 150 nm．A.chartplotterB.C-MAP NTC.C-CardsD.PPI
The ______ has a built-in world map; most areas are displayed on a scale of 4000 nm from the top to the bottom of the screen，and can be zoomed in to 150 nm．
A.chartplotter
B.C-MAP NT
C.C-Cards
D.PPI
相关考题：
EThe need to feed a growing population is putting much pressure on the world’s supply of water. With 97% of the world’s water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture. Although the idea of a water shortage（短缺）seems strange to someone fortunate enough to live in a high rainfull country, many of the world’s agricultural industries experience constant water shortages.Although dams can be built to store water for agricultural use in dry areas and dry seaons, the costs of water redistribution(重新分配)are very high. Notonly is there the cost of the engineering itself, but there is also an environmental cost to be considered. Where valleys(山谷)are flooded to create dams, houses are lost and wildlife homes destroyed. Besides, water many flow easily through pipes to fields,but it cannot be transported from one side of the world to the other. Each country must therefore rely on the management of its own water to supply its farming requirements.This is particularly troubling ro countries with agricultural industries in areas dependent on irrigation（灌溉）. In Texas, farmers’ overuse of irrigation water be resulted in a 25% redcution of the water stores. In the Central Valley area of south eastern USA, a huge water engineering project provided water for farming in dry vallege, but much of the water use has been poorly managed.Saudi Arabia’s attempts to grow wheat in desert areas have been the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping will see them run dry.72. From the first two paragraphs we learnt that _______.A.much of the world’s water is available for useB.people in high rainfll countries feel luckyC.the costs of water redistribution should be consideredD.water can be easily carried through pipes across the world
In 1847 most countries of the world were ______.A. not yet using postage stampsB. collecting valuable stampsC. buying stamps from NeuritisD. printing their own stamps
Passage ThreeQuestions 31 to 35 are based on the following passage.One of the most exciting races ever run is now in progress between doctors fighting malaria(疟疾)and mosquitoes. According to the most recent counts 225 million people a year suffer attacks of malaria and more than two million die. Public health workers around the world are doing all t11ev can to destroy malaria before the mosquitoes that pass on the disease become resistant to the poisons now used against them. It's a race against time and against difficulties，with millions of lives in danger and the chances of winning not in man's favour.Malaria，it is true，has been practically wiped out in thirteen countries. including the United States，and is under attack in many others. But it is equally true that in some parts of the world certain types of malaria-carrying mosquitoes have already learned to resist some of the sprays that formerly killed them. Other types of mosquitoes are not killed as quickly by present sprays as they once were.The World Health Organization is helping national governments to get rid of malaria before resistance among the mosquito population becomes so great that new poisons will have to be found to replace those in use at present. Most of the countries in the world have started，or are planning，campaigns against mosquitoes. If the race against resistance is won by man，it is possible that ten years from now dais old evil will have disappeared completely from the America，perhaps from the world.Malaria has been successfully got. rid of in______.A. all countriesB. some countriesC. no countriesD. most countries
It can be inferred from the passage that by the end of World War Ⅱ , most Americans ______.A. were very richB. lived in povertyC. did not own automobilesD. had own automobiles
The introduction of the printing technology to England helped to spread English into many countries and places over the world so that it has become the most important international language in the present day.()
Several users from the same location are reporting problems accessing the intranet server. Anadministrator has verified that no other remote areas are having issues connecting to the sameserver.Which of the following steps should the administrator perform NEXT?（）A. Determine what has changedB. Test a solution.C. Establish the most probable causeD. Escalate the problem to the right section
By saying "the world has been spared a t.rue water war" (Line 1, Para.4), the author means（ ）[A] the water supply in the world is more than needed[B] the world has saved enough water to avoid the war[C] the world has never suffered a war triggered by water[D] the world spares no effort to avoid a war caused by water
Generally，______ are used as the track charts on the high sea，______ are used for harbors，inland waters and coastal areas．A.Mercator charts／Loran chartsB.Admiralty charts／Routeing chartsC.large scale charts／small scale chartsD.small scale charts／large scale charts
共用题干What Makes a Soccer Player Great?Soccer is played by millions of people all over the world,but there have only been few play-ers who were truly great.How did these players get that way—was it through training and prac- tice,or are great players“born,not made”?First,these players came from places that have had famous stars in the past-players that a young boy can look up to and try to imitate.In the history of soccer,only six countries have ever won the World Cup-three from South America and three from western Europe .There has never been a great national team-or a really great player-from North America or from Asia.Second,these players have all had years of practice in the game. Alfredo Di Stefano was the son of a soccer player,as was Pele.Most players begin playing the game at the age of three or four.Finally,many great players come from the same kind of neighborhood—a poor,crowded area where a boy's dream is not to be a doctor,lawyer,or businessman,but to become a rich,famous athlete or entertainer. For example,Liverpool,which produced the Beetles,had one of the bestEnglish soccer teams in recent years.Pele practiced in the street with a“ball”made of rags.And George Best learned the tricks that made him famous by bouncing the ball off a wall in the slums of Belfast.All great players have a lot in common,but that doesn't explain why they are great. Hundreds of boys played in those Brazilian streets,but only one became Pele.The greatest play-ers are born with some unique quality that sets them apart from all the others.Pele is cited as an example in the second paragraph to illustrate that______.A: famous soccer players live in slum areasB: people in poor areas are born with some unique qualityC: children in poor areas start playing football at the age of 3 or 4D: many great soccer players come from poor areas
Why has Australia always been a continent with few people?（）ABecause Australia is too far away from Europe.BBecause Australia is the least mountainous and most level of the world.s continents.CBecause Australia is separated from the rest of the world by seas.DBecause most of the continent is hot and dry.
The Great Barrier Reef is included on the World Heritage list because（）Ait has the most beautiful seascape in the worldBit has the greatest number of islands in the worldCit has the most diverse and complex marine life in the worldDit has the longest coast in the world
One of the most important characteristics of OSPF is Multiple areas. Which statement best describes why this feature is such an important enhancement to earlier routing protocols?（）A、The network domain, when divided into areas, allows for the use of both IANA classful addressing and private addressing.B、The use of multiple areas allows for the use of prioritization.C、All computation is kept within the area, with minimum communication between the areas,allowing the network to scale to larger sizes.D、It is easier to implement security.
Why has Australia always been a continent with few people?（）A、Because Australia is too far away from Europe.B、Because Australia is the least mountainous and most level of the world.s continents.C、Because Australia is separated from the rest of the world by seas.D、Because most of the continent is hot and dry.
The Great Barrier Reef is included on the World Heritage list because（）A、it has the most beautiful seascape in the worldB、it has the greatest number of islands in the worldC、it has the most diverse and complex marine life in the worldD、it has the longest coast in the world
Which of the following commands would a technician MOST likely use to map a printer from aremote computer?（）A、NET USEB、IPCONFIGC、NSLOOKUPD、TRACERT
问答题Practice 2 Until recently, scientists knew little about life in the deep sea, nor had they reason to believe that it was being threatened. Now, with the benefit of technology that allows for deeper exploration, researchers have uncovered a remarkable array of species inhabiting the ocean floor at depths of more than 660 feet, or about 200 meters. At the same time, however, technology has also enabled fishermen to reach far deeper than ever before, into areas where bottom trawls can destroy in minutes what has taken nature hundreds and in some cases thousands of years to build. Many of the world's coral species, for example, are found at depths of more than 200 meters. It is also estimated that roughly half of the world's highest seamounts - areas that rise from the ocean floor and are particularly rich in marine life - are also found in the deep ocean. These deep sea ecosystems provide shelter, spawning and breeding areas for fish and other creatures, as well as protection from strong currents and predators. Moreover, they are believed to harbor some of the most extensive reservoirs of life on earth, with estimates ranging from 500,000 to 100 million species inhabiting these largely unexplored and highly fragile ecosystems.
单选题One of the most important characteristics of OSPF is Multiple areas. Which statement best describes why this feature is such an important enhancement to earlier routing protocols?（）AThe network domain, when divided into areas, allows for the use of both IANA classful addressing and private addressing.BThe use of multiple areas allows for the use of prioritization.CAll computation is kept within the area, with minimum communication between the areas,allowing the network to scale to larger sizes.DIt is easier to implement security.
单选题To prevent a wooden hull from leaking you caulk it（）.Aafter drydocking，while the hull is moistBafter drydocking，and the hull has driedCafloat，where it is leakingDafloat，in all accessible areas
单选题It might be the world’s most widely distributed email client, but Microsoft has confirmed that it has no _______ of further developing Outlook Express.AwillingnessBreadinessCintentionDdemonstration
单选题Since the Second World War, most urban growth in the United States has occurred on the outskirts of existing metropolitan areas.Acounties Bedges Cstreets Dintersections
单选题According to the passage, which of the following statements is NOT TRUE?AMcDonald’s was founded in 1948.BMcDonald’s has opened its restaurants in every city of the world.CMcDonald’s has over 30,000 locations in the world now.DMcDonald’s was very small in scale in the beginning.
单选题Several users from the same location are reporting problems accessing the intranet server. An administrator has verified that no other remote areas are having issues connecting to the same server. Which of the following steps should the administrator perform NEXT?（）ADetermine what has changedBTest a solution.CEstablish the most probable causeDEscalate the problem to the right section
单选题In which of the areas listed is a fire resulting from spontaneous combustion most likely to occur?（）AEngine room bilgesBPaint lockerCBattery storage lockerDFuel oil tank
单选题The rivers flow through some of the world’s grimiest areas, picking up oil, lead and other toxic materials, as well as fertilizer residues and nuclear fallout from Chernobly.Aworldly Bpoisonous Cwholesome Dvoid
单选题Generally，（）are used as the track charts on the high sea，（）are used for harbors，inland waters and coastal areas．AMercator charts／Loran chartsBAdmiralty charts／Routeing chartsClarge scale charts／small scale chartsDsmall scale charts／large scale charts
单选题The Great Barrier Reef is included on the World Heritage list because（）Ait has the most beautiful seascape in the worldBit has the greatest number of islands in the worldCit has the most diverse and complex marine life in the worldDit has the longest coast in the world