单选题 U.S. health officials are increasing surveillance measures at doctors' offices and international borders to guard against the spread of swine flu. Washington also has begun dispersing medicine from a federal stockpile. The Centers for Disease Control and Prevention says there have been only mild cases of swine flu in the United States, but experts remain on guard. Acting agency director, Richard Besser, says the epidemic in Mexico prompted U.S. doctors to begin monitoring actively for possible infections. "We are asking doctors when they see someone who has flu-like illness who has traveled to an affected region, to do a culture, take a swab in the nose and send it to the lab so we can see: is it influenza, is it this type?" he said. Speaking Sunday at the White House, Besser said the extra detection efforts have enabled officials to find more infections than under normal circumstances. He also says he expects the number of infections will rise and the illness will spread to other U.S. regions, as doctors continue to monitor the problem. The Centers for Disease Control and Prevention says it does not recommend people travel to Mexico, where the outbreak of swine flu is centered and more than 100 deaths have been reported. But officials have not ordered a travel ban to the country. Homeland Security Secretary Janet Napolitano says, instead, airlines have the option of screening passengers on flights from Mexico. "We are letting air carriers and our employees at the gates on those flights make sure that they are asking people if they are sick; and if they are sick, that they should not board the plane," she said. Denise Korniewicz, an infectious disease expert at the University of Miami, says officials should take bolder steps to screen passengers at international borders, as Japan and other Asian nations are doing. "We have a very transient population here. And Japan has taken a lot of precautions. What Japan is doing is they are making everyone take a temperature when they get off the airplane," she said. "As far as I am concerned, I think that is a good idea." U.S. officials say they are holding off on more aggressive actions because the outbreak has been limited in the United States and they do not want to cause a health scare. Korniewicz says around the country health centers are putting in place emergency response measures aimed at limiting disease outbreaks.

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单选题Which of the following does NOT present a true picture of American blacks?

单选题Which of the following is true about Charles Darwin's travel around the world?

单选题Which of the following is NOT the problems brought by multinationals?

单选题You should take more exercise if you want to keep ______ [A] fat [B] fit [C] fine

单选题Bill Gates, the billionaire Microsoft chairman without a single earned university degree, is by his success raising new doubts about the worth of the business world's favorite academic title: the MBA (Master of Business Administration). The MBA, a 20th century product, always has borne the mark of lowly commerce and greed on the tree-lined campuses ruled by purer disciplines such as philosophy and literature. But even with the recession apparently cutting into the hiring of business school graduates, about 79,000 people were expected to receive MBAs in 1993. This is nearly 16 times the number of business graduates in 1960, a testimony to the widespread assumption that the MBA is vital for young men and women who want to run companies some day. "If you are going into the corporate world it is still a disadvantage not to have one," said Donald Morrison, professor of marketing and management science. "But in the last five years or so, when someone asks, 'Should I attempt to get an MBA?' The answer a lot more is: 'It depends.'" The success of Bill Gates and other non-MBAs, such as the late Sam Walton of Wal-Mart Stores Inc. , has helped inspire self-conscious debates on business school campuses over the worth of a business degree and whether management skills can be taught. The Harvard Business Review printed a lively, fictional exchange of letters to dramatize complaints about business degree holders. The article called MBA hires "extremely disappointing" and said "MBAs want to move up too fast, they don't understand politics and people, and they aren't able to function as part of a team until their third year. But by then, they're out looking for other jobs." The problem, most participants in the debate acknowledge, is that the MBA bas acquired an image of future riches and power far beyond its actual importance and usefulness. Enrollment in business schools exploded in the 1970s and 1980s and created the assumption that no one who pursued a business career could do without one. The growth was fueled by a drive against the anti-business values of the 1960s and by the women's movement. Business people who have hired or worked with MBAs say those with the degrees often know how to analyze systems but are not so skillful at motivating people. "They don't get a lot of grounding in the people side of the business", said James Shaffer, vice-president and principal of the Towers Perrin Management Consulting Firm.

单选题Which of the following is NOT the reason for which Bank of America thrived?

单选题During the last fifty years, the international economy has experienced a basic change. Improvements in the Internet and other communication tools have had important effects on the world markets. Faster methods of transport from one place to another have made the world seem much smaller to the businessmen. As a result, the world no longer consists of a number of separate and independent economies under the control of different nations. Instead, the nations have been integrated into a single economy, and the integration is becoming more and more complete every year. Now, for the first time in history, we can truly speak of a global economy. The most dramatic example of this integration was the oil crisis of 1973 and 1974. It came as a great surprise to the public in the industrial nations to discover that they depended so heavily on imported oil and each other. However, the best evidence for the growing integration is the rapid expansion in the volume of world trade. It went up by about 7 percent year by year during the decade from 1990 to 2000, and in several quasi-industrial countries the growth was even more rapid. As a result, some imported products have become so common that they are treated as domestic commodity. Some of them are too common for the public to any more realize they are foreign. Production has also become international, which is manifested by the large corporations stepping across national borders and establishing branches and subsidiaries in several different countries. As an example, U.S. companies are building many automobiles in China, Canada, Germany, Britain and Japan. In most cases, many components of an automobile are produced in these countries and then shipped to the United States, where they are finally assembled with other parts. When even the United States has the largest number of such corporations, it is not the only one. Other multinationals, for instance, are based in Japan, France, Germany, the UK and Italy. Labor, too, is much more mobile than in the past. Both skilled and unskilled workers can now readily migrate from one country to another. In Europe, take it for an example, there are large numbers of Turkish workers employed in the German economy. Doctors, lawyers, and other professionals are also finding it easier to work in foreign countries. The labor market has become international, and the number of expatriate workers is continuing to grow.

单选题 　　It was not "the comet of the century" experts predicted it might be. However, Kohoutek has pro- vided a bonanza of scientific information. It was first spotted 370 million miles from Earth, by an astronomer who was searching the sky for asteroids, and after whom the comet was named. Scientists who tracked Kohoutek the ten months before it passed the Earth predicted the comet would be a brilliant spectacle. But Kohoutek fell short of these predictions, disappointing millions of amateur sky watchers, when it proved too pale to be seen with the unaided eye. Researchers were very happy nonetheless With the new information they were able to glean from their investigation of the comet. Perhaps the most significant discovery was the identification of two important chemical compounds — methyl cyanide and hydrogen cyanide — never before seen in comets, but found it the far reaches of interstellar space. This discovery revealed new clues about the origin of comets. Most astronomers agree that comets are primordial remnants from the formation of the solar system, but whether they were born between Jupiter and Neptune or much farther out toward interstellar space has been the subject of :much debate. If compounds no more complex than ammonia and methane, key components of Jupiter, were seen in comets, it would suggest that comets form within the planetary orbits. But more complex compounds, such as the methyl cyanide found in Kohoutek, point to formation far beyond the planets; there the deep freeze of space has kept them unchanged.

单选题Questions 11～13 are based on a dialogue between husband and wife, You now have 15 seconds to read Questions 11～13.

单选题Whattimeisitnow?[A]4:45．[B]4:10．[C]5:15.

单选题 Questions 14-17 are based on the following dialogue between husband and wife about their unpleasant trip. You now have 20 seconds to read Questions 14-17.

单选题Questions 11—13 are based on the following passage. You now have 15 seconds to read Questions 11—13.