单选题The floods did not start to ______ until two days after the rain had stopped.

单选题It can be argued that the best known baby boomer of all is the computer itself. But it would be unfair to say that the computer has transformed the lives of boomers (those born in the years following World War Ⅱ) and leave it at that. The boomers themselves can take credit for shaping the course of this technology if not the entire direction of the digital revolution. In the 1950s, computers were like... the 1950s. They were giant monochrome machines tended by people wearing white shirts and black ties. They filled a room and were used for tasks like accounting, code-breaking and statistical calculation. Even after huge breakthroughs in transistors and microprocessors in the early 1970s, those in charge of companies like IBM or Digital Equipment Corporation felt that nothing could be more absurd than a personal computer. Who could possibly want a computer of one"s own? What would you use it for? What really led the boomers to become pioneers of the PC revolution was a sense of possibility. "They saw the technology as mind-expanding," says John Markoff, author of "What the Dormouse Said: How the 60s Counterculture Shaped the Personal Computer Industry", "It was one of a series of quests going on, part of an attempt to break out the confines of the suburban realities of the 1950s." That was certainly the case for Steve Jobs (born 1955), raised in the suburban Valhalla of 1960s Silicon Valley where your next-door neighbor could, and did, bring you straight-from-the-fab microchips to play with. He attended Reed College, dropped out, went to India, and wound up back in Silicon Valley, where he reconnected with his high school buddy Steve Wozniak (born 1950). Jobs convinced Woz to quit his job at Hewlett-Packard to form Apple. Naturally, the values of their generation were reflected in their approach to designing products (notably the Apple Ⅱ that became the first mass-market PC) and building their company. Even earlier in the game was Bill Gates (born 1955), who, with the help of his high school buddy Paul Allen (born1953), put together the pieces and saw something big was about to happen. He was Harvard sophomore in 1974 when Allen showed him that issue of Popular Electronics. "We said, "Oh, it is going to happen without us?"" and right then the two vowed to write software for the Altair (the first personal computer). "There"s some benefit to youth," he says. "It is a lot like physics-Einstein saw relativity, the others didn"t—but then he didn"t understand quantum dynamics, that next generation came along, and he became the old guard. There"s something about these wild changes that are hard to see." And is there a more canonical boomer"s tale than that of Mitch Kapor (born 1950), who majored in psychology at Yale, and after graduation... became a teacher of Transcendental Meditation. But ever since he"d come across a copy of "Computer Lib" in a Harvard Square bookstore, he was fascinated by computers, particularly the promise they had to empower ordinary people. He began designing software. His product was Lotus 1-2-3. And now another Harvard dropout, Mark Zuckerberg (born 1984), heads silicon Valley"s new heartthrob, Facebook. All have adopted the grow-fast template of the boomer pioneers.

单选题Fromthearticle,whichofthefollowingstatementsabouttheanterolateralligamentisTRUE?

单选题A.0.0125B.0.025C.0.1D.0.25E.0.625

单选题Inasampleofpatientsatananimalhospital,30percentarecatsand60percentarenotdogs.Whatfractionofthosepatientswhoarenotcatsaredogs?

单选题The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether Ａ. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. Ｂ. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. Ｃ. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. Ｄ. EACH statement ALONE is sufficient. Ｅ. Statements (1) and (2) TOGETHER are NOT sufficient.

单选题For any 3 given numbers, which of the following is always equivalent to adding the 3 numbers together and then dividing the sum by 3? Ⅰ. Ordering the 3 numbers numerically, from highest to lowest, and then selecting the middle number. Ⅱ. Dividing each of the numbers by 3 and then adding the results together. Ⅲ. Multiplying each number by 6, adding the resulting products together, and then dividing the sum by 9. A. Ⅰ only B. Ⅱ only C. Ⅰ and Ⅱ only D. Ⅱ and Ⅲ only E. None of the above

单选题Imagine eating everything delicious you want with none of the fat. That would be great, wouldn"t it? New "fake fat" products appeared on store shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods. Critics, however, say the new compound can rob the body of essential vitamins and nutrients and can also cause unpleasant side effects in some people. So it"s up to consumers to decide whether the new fat-free products taste good enough to keep eating. Chemists discovered olestra in the late 1960s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can"t be digested at all. Normally, special chemicals in the intestines (肠) "grab" molecules of regular fat and break them down so they can be used by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids. The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E, and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins attach to the molecules and are carried into the bloodstream. Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides unchanged through the intestines without being broken down. Manufacturers say it"s that ability to slide unchanged through the intestines that make olestra so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E, and K from being absorbed. It can also prevent the absorption of carotenoids (类胡萝卜素), compounds that may reduce the risk of cancer, heart disease, etc. Manufacturers are adding vitamins A, D, E, and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how many calories they are consuming.

单选题The Great ______ in the USA is 1900 meters deep and 25 kilometers wide at its maximum. A. Canyon B. Ford C. Abyss D. Quarry

单选题The island is maintained as a ______ for endangered species. A. wetlands B. sanctuary C. mire D. heath

单选题Studies have shown that companies that present seminars on workplace safety to their employees actually have higher rates of workplace accidents than do companies that do not present such seminars to their employees. Despite this finding, it is still in the best interests of companies and their employees for companies to present these seminars. Which of the following, if true, provides the strongest support for the argument that the companies should continue to present these seminars? A. Companies that present workplace safety seminars to their employees are likely to be in manufacturing industries or segments of the service sector that present more opportunities for workplace accidents than the average company. B. A fast-food chain determined that the rate of workplace accidents remained the same at its franchises after all employees had viewed a 30-minute workplace safety video. C. Workers are ultimately responsible for their own safety, and no amount of workplace education can alter their behavior. D. A business research institute determined that workplace accidents reduce the productivity of manufacturing businesses by as much as 8 percent per year. E. Many companies mistakenly believe that presenting workplace safety seminars to their employees relieves the company of legal liability in the event that employees are injured on the job.

单选题ululate

单选题The rise of multinational corporations, global marketing, new communications technologies, and shrinking cultural differences have led to an unparalleled increase in global public relations or PR. Surprisingly, since modern PR was largely an American invention, the U.S. leadership in public relations is being threatened by PR efforts in other countries. Ten years ago, for example, the world"s top five public relations agencies were American-owned. In 1991, only one was. The British in particular are becoming more sophisticated and creative. A recent survey found that more than half of all British companies include PR as part of their corporate planning activities, compared to about one-third of U.S. companies. It may not be long before London replaces New York as the capital of PR. Why is America lagging behind in the global PR race? Firstly, Americans as a whole tend to be fairly provincial and take more of an interest in local affairs. Knowledge of world geography, for example, has never been strong in this country. Secondly, American lags behind their European and Asian counterparts in knowing a second language. Less than 5 percent of Burson-Marshall"s U.S. employees know two languages. Ogilvy and Mather has about the same percentage. Conversely, some European firms have half or more of their employees fluent in a second language. Finally, people involved in PR abroad tend to keep a closer eye on international affairs. In the financial PR area, for instance, most Americans read the Wall Street Journal. Overseas, their counterparts read the Journal as well as the Financial Times of London and The Economist, publications not often read in this country. Perhaps the PR industry might take a lesson from Ted Turner of CNN (Cable News Network). Turner recently announced that the word "foreign" would no longer be used on CNN news broadcasts. According to Turner, global communications have made the nations of the world so interdependent that there is no longer any such thing as foreign.

单选题Whichofthefollowingcannotbethemedianoffivepositiveintegersa,b,c,d,ande?A.aB.d+eC.b+c+d

单选题Federal tax evasion is a serious crime that places an unfair tax burden on those members of society who pay their fair share. To reduce the incidence of tax evasion, the government needs to prosecute a few high-profile individuals whose cases will receive substantial media attention. The argument above relies on which of the following assumptions? A. The tax system is so complicated that even people who try to comply with it may inadvertently not pay some of their taxes. B. The average citizen will be less likely to evade taxes after he or she sees a high-profile individual prosecuted for tax evasion. C. Tax revenues collected from high-profile tax evaders will help to alleviate the unfair tax burden on honest citizens. D. Although it is difficult to secure a conviction on a charge of tax evasion, if the government focuses its efforts on a small number of high-profile individuals, the odds of obtaining a conviction will increase. E. While there is no universal measure for determining whether a taxation system is "fair" or "unfair," the current system was constructed by Congress to represent the societal priorities and values of the American people.

单选题Which of the following statement is NOT true? A. Language is a means of vocal communication. B. Language is instrumental. C. Language is social and conventional.

单选题Excuses relieve tension by helping ______ both sides that the mistake was an aberration that will not be repeated.

单选题A postage stamp has been issued to Upay tribute to/U Helen Keller and her teacher, Anne Sullivan.

单选题When airlines were deregulated in the 1970s, the average price of a ticket was $135. Three decades later, the average price is $275, there are twice as many in-air collisions, fliers in small markets are at the mercy of predatory carriers, and air rage is at an all-time high. It is time to re-regulate the air travel industry. All of the following statements, if true, weaken the above argument except for which statement? A. Because of inflation, a $275 ticket today is actually 10 to 20 percent less expensive than a $135 ticket was in 1975. B. Deregulation has increased the choices available to fliers in terms of both time of flight and carrier. C. Airlines are currently flying more than five times as many passenger miles per year as they did in 1975. D. Compared with passengers in large urban areas, passengers in small markets pay, on average, twice as much per mile flown on domestic flights because their airports are generally served by fewer airlines. E. Psychologists have been able to determine no connection between the deregulation of the airline industry and the onset of increased levels of air rage.

单选题An analyst at a furniture company has noted that the company loses approximately $2 million per year on its money-back guarantee, which stipulates that the company will return the purchase price to any customer whose furniture breaks within the first year, regardless of the way in which the furniture was broken. The analyst argues that the company could increase its net revenues (total revenues minus total costs) if it abolished the money-back guarantee. Which of the following, if true, provides the best reason for the company not to follow the analyst's advice? A. A study has shown that only 25 percent of the broken furniture claims that the company has honored in the last five years were due to manufacturing defects. B. The $2 million that the company expends on the money-back guarantee represents only 4 percent of the company's total costs. C. A popular consumer magazine gave the furniture company its highest rating for overall quality of product. D. The company's largest competitor has a more restrictive money-back guarantee that covers only furniture broken due to manufacturing defects within six months of purchase. E. Customers cite the money-back guarantee as the primary reason they buy furniture from this company.