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单选题Although this book claims to be a biography of George Washington, many of the incidents are imaginary.
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单选题Early signs of ______ seen in the herbal medicine study are extremely encouraging and based upon these data, we are now planning a registration program. A. faculty B. reception C. deterioration D. efficacy
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单选题It was the training that he had as a young man ______ made him such a good engineer. A. that B. has C. what D. later
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单选题 Directions: For this part, you are allowed 30 minutes to write a news report to your campus newspaper on a visit to a local farm organized by your Student Union. You should write at least 120 words but no more than 180 words.
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单选题Don' t smoke until the plane ______ off.
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单选题The tenant must be prepared to decorate the house______the terms of the contract.
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单选题Fear seems to be the dominant mood of the moment. Hurricanes, tidal waves, floods, earthquakes and terrorism this year have all brought with them not only appalling scenes of devastation, death and suffering, but also outrage at the lack of preparations to avoid or cope with these disasters. Now even the birds of the air are a threat, we are told. That migrating flock visible on the horizon at sunset, once a consoling reminder of the eternal rhythms of nature, could be carrying the virus which might soon kill tens of millions of people. Given the many fingers pointed at governments in the wake of other disasters this year, it is hardly surprising that they are scrambling to respond to the threat posed by avian influenza. After confirmation this week that the H5N1 strain of bird flu, which has been spreading quickly in Asia, had been discovered in Romania and perhaps Greece, European Union foreign ministers convened an emergency meeting. President George Bush, still smarting from a torrent of criticism of his government's clumsy response to Hurricane Katrina, has promised to rush out emergency plans for dealing with an outbreak of pandemic flu which have been stalled for years. Countries around the world are hurrying to stockpile the only current antiviral drug, Tamiflu, which might be effective in saving lives in any pandemic or curbing its spread. The World Health Organisation is calling for an internationally co-ordinated effort. Health ministers from around the globe are due to meet next week in Canada to discuss what steps to take. Is any of this effort justified? Or are politicians simply helping to feed public panic, and then covering themselves by promising to spend lavishly against a threat which may never materialize and to reduce a risk which they do not understand? To ask these questions is not to counsel complacency, but to apply the kind of test which is required in any kind of disaster planning, not least because the world is an inherently dangerous place and it is impossible to plan against every possible disaster. With the media full of warnings of impending mass death, an overreaction is all too possible.
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单选题Since she knew nothing about a foreign language, she was ______ by the menu at the restaurant and did not know how to' order.
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单选题{{B}}Text 3{{/B}} It may turn out that the "digital divide"—one of the most fashionable political slogans of recent years—is largely fiction. As you will recall, the argument went well beyond the unsurprising notion that the rich would own more computers than the poor. The disturbing part of the theory was that society was dividing itself into groups of technology "haves" and "have-nots" and that this segregation would, in turn, worsen already large economic inequalities. It is this argument that is either untrue or wildly exaggerated. We should always have been suspicious. After all, computers have spread quickly because they have become cheaper to buy and easier to use. Falling prices and skill requirements suggest that the digital divide would spontaneously shrink—and so it has. Now, a new study further discredits the digital divide. The study, by economist David Card of the University of California, Berkeley, challenges the notion that computers have significantly worsened wage inequality. The logic of how this supposedly happens is straightforward: computers raise the demand for high-skilled workers, increasing their wages. Meanwhile, computerization—by automating many routine tasks—reduces the demand for low-skilled workers and, thereby, their wages. The gap between the two widens. Superficially, wage statistics support the theory. Consider the ratio between workers near the top of the wage distribution and those near the bottom. Computerization increased; so did the wage gap. But wait, point out Card and DiNardo. The trouble with blaming computers is that the worsening of inequality occurred primarily in the early 1980s. With computer use growing, the wage gap should have continued to expand, if it was being driven by a shifting demand for skills. Indeed, Card and DiNardo find much detailed evidence that contradicts the theory. They conclude that computerization does not explain "the rise in U.S. wage inequality in the last quarter of the 20th century." The popular perception of computers' impact on wages is hugely overblown. Lots of other influences count for as much, or more. The worsening of wage inequality in the early 1980s, for example, almost certainly reflected the deep 1981—1982 recession and the fall of inflation. Companies found it harder to raise prices. To survive, they concluded that they had to hold down the wages of their least skilled, least mobile and youngest workers. The "digital divide" suggested a simple solution (computers) for a complex problem (poverty). With more computer access, the poor could escape their lot. But computers never were the source of anyone's poverty and, as for escaping, what people do for themselves matters more than what technology can do for them.
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单选题An important customer may resent being ______ by an assistant rather than by the boss.
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单选题The Indian wars were an ugly ______ in the history of United States.
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单选题Whether their football team will win is a matter of ______ to me. A. indifference B. discrimination C. deviation D. interests
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单选题That health and beauty are linked is not in doubt. But it comes as something of a surprise that who is 28 as beautiful depends not only on the health of a person but also on the average level of health in the place where she lives. This, though, is the conclusion of a study just published in Biology Letters by Urszula Marcinkowska of the University of Turku, in Finland, and her 29 —for Ms. Marcinkowska has found that men in healthy countries think women with the most 30 face are the prettiest whilst those in unhealthy places prefer more masculine-looking ones. Ms Marcinkowska came to this conclusion by showing nearly 2,000 men from 28 countries various versions of the same female faces, 31 to look less or more feminine and thus 32 the effect of different levels of oestrogen and testosterone. Oestrogen promotes 33 , such as large eyes and full lips, that are 34 feminine. Testosterone promotes 35 features, such as wide faces and strong chins. Previous studies have shown that women with feminine features are more fertile. A man's 36 for them is thus likely to enhance his reproductive success. Ms Marcinkowska speculates that testosterone-induced behavioral characteristics like 37 , which might be expected to correlate with masculine-looking faces even in women (they certainly do in men), help in the competition for resources needed to sustain children once they are born. But why that should be particularly important in an unhealthy country is unclear. A. features B. refined C. feminine D. favorable E. modified F. perceived G. preference H. dominance I. genetically J. personality K. characteristically L. masculine M. valuable N. colleagues O. reflect
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单选题My parents never let me ______ alone.
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单选题When she (retires) in September 1989, (tennis champion) Christine Evert was the (most famous) (woman athlete) in the United States.A. retiresB. tennis championC. most famousD. woman athlete
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单选题W: Has the mechanic called the bus repairers?M: Not yet. I’ll let you know when he calls.Q: What do we learn from the conversation?
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单选题Who won the World Cup 1994 football game? What happened at the United Nations? How did the critics like the new play? 1 an event takes place, newspapers are on the streets 2 the details. Wherever anything happens in the world, reports are on the spot to 3 the news. Newspapers have one basic 4 , to get the news as quickly as possible from its source, from those who make it to those who want to 5 it. Radio, telegraph, television, and 6 inventions brought competition for newspapers. So did the development of magazines and other means of communication. 7 , this competition merely spurred the newspapers on. They quickly made use of the newer and faster means of communication to improve the 8 and thus the efficiency of their own operations. Today more newspapers are 9 and read than ever before. Competition also led newspapers to branch out to many other fields. Besides keeping readers 10 of the latest news, today"s newspapers 11 and influence readers about politics and other important and serious matters. Newspapers influence readers" economic choices 12 advertising. Most newspapers depend on advertising for their very 13 . Newspapers are sold at a price that 14 even a small fraction of the cost of production. The main 15 of income for most newspapers is commercial advertising. The 16 in selling advertising depends on a newspaper"s value to advertisers. This 17 in terms of circulation. How many people read the newspaper? Circulation depends 18 on the work of the circulation department and on the services or entertainment 19 in a newspaper"s pages. But for the most part, circulation depends on a newspaper"s value to readers as a source of information 20 the community, city, country, state, nation, and world—and even outer space.
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单选题The police have asked for the ______of the public in tracing the whereabouts of the missing child. A.award B.co-operation C.position D.helpfulness
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单选题The search was ______ when the fog got thicker. A. called off B. called on C. called in D. called for
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单选题 The spokesman made it evident ______ no compromise was yet in sight.
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