单选题For each group of items in the following, point out which item does not fall under the same category as the rest and explain the reason in ONE sentence.

单选题Speaker A: I'd like to exchange these jeans please.Speaker B: ______

单选题With multimedia, ______. A．digital information can be centrally stored, yet available at many places at the same time physicians can meet regularly B．experts can see the data and images clearly C．physicians can consult experts at any time D．teachers can send emails to the students

单选题Because I have been very busy these days, I'll have to ______ my former classmates' invitation to a re-union party.

单选题A. receipt B. implication C. empty D. concept

单选题It is better for parents ______.

单选题(2010) To get the job started,____1 need is your permission.

单选题The price of beer ______ from 50 cents to 4 dollars per liter during the summer season. A) altered B) ranged C) separated D) different

单选题The day was star-crossed: Friday the 13th in the month of October, on the eve of the second looming anniversary of a devastating market crash. "I'm telling you, psychology is really funny. People get crazy in situations like that," said portfolio strategist Elaine Garzarelli. Last week Friday the 13th lived up to its frightful reputation. After drifting lower at a sleepy pace for most of the day, the Dow Jones industrial average abruptly lurched into a hair-raising sky dive in the final hour of trading. The Bush Administration moved swiftly to avert any sense of crisis after the market closed. Declared Treasury Secretary Nicholas Brady: "It's important to recognize that today's stock market decline doesn't signal any fundamental change in the condition of the economy. The economy remains well balanced, and the outlook is for continued moderate growth." But Massachusetts Democrat Edward Markey, who chairs a House subcommittee on telecommunications and finance, vowed to hold hearings this week on the stock market slide. Said he: "This is the second heart attack. My hope is that before we have the inevitable third heart attack, we pay attention to these problems." Experts found no shortage of culprits to blame for the latest shipwreck. A series of downbeat realizations converged on Friday, ranging from signs of a new burst of inflation to sagging corporate profits to troubles in the junk-bond market that has fueled major takeovers. The singular event that shook investors was the faltering of a $6.75 billion labor management buyout of UAL, the parent company of United Airlines, the second largest U. S. carrier. On one point most thoughtful Wall Streeters agreed: the market had reached such dizzying heights that a correction of some sort seemed almost inevitable. Propelled by favorable economic news and a wave of multibillion-dollar takeovers, stocks had soared more than 1,000 points since the 1987 crash. But by last August some Wall streeters were clearly worried. The heaviest blow to the market came Friday afternoon. In a three-paragraph statement, UAL said a labor-management group headed by Chairman Stephen Wolf had failed to get enough financing to acquire United. Several banks had apparently balked at the deal, which was to be partly financed through junk bonds. The take-over group said it would submit a revised bid "in the near term,' but the announcement stunned investors who had come to view the United deal as the latest sure thing in the 1980s buyout binge. Said John Downey, a trader at the Chicago Board Options Exchange: "The airline stocks have looked like attractive takeover targets. But with the United deal in trouble, everyone started to wonder what other deals might not go through./

单选题When a Scottish research team startled the world by revealing 3 months ago that it had cloned an adult sheep, President Clinton moved swiftly. Declaring that he was opposed to using this unusual animal husbandry technique to clone humans, he ordered that federal funds not be used for such an experiment—although no one had proposed to do so—and asked an independent panel of experts chaired by Princeton President Harold Shapiro to report back to the White House in 90 days with recommendations for a national policy on human cloning. That group—the National Bioethics Advisory Commission (NBAC)—has been working feverishly to put its wisdom on paper, and at a meeting on 17 May, members agreed on a near-final draft of their recommendations. NBAC will ask that Clinton"s 90-day ban on federal funds for human cloning be extended indefinitely, and possibly that it be made law. But NBAC members are planning to word the recommendation narrowly to avoid new restrictions on research that involves the cloning of human DNA or cells—routine in molecular biology. The panel has not yet reached agreement on a crucial question, however, whether to recommend legislation that would make it a crime for private funding to be used for human cloning. In a draft preface to the recommendations, discussed at the 17 May meeting, Shapiro suggested that the panel had found a broad consensus that it would be "morally unacceptable to attempt to create a human child by adult nuclear cloning." Shapiro explained during the meeting that the moral doubt stems mainly from fears about the risk to the health of the child. The panel then informally accepted several general conclusions, although some details have not been settled. NBAC plans to call for a continued ban on federal government funding for any attempt to clone body cell nuclei to create a child because current federal law already forbids the use of federal funds to create embryos (the earliest stage of human offspring before birth) for research or to knowingly endanger an embryo"s life, NBAC will remain silent on embryo research. NBAC members also indicated that they will appeal to privately funded researchers and clinics not to try to clone humans by body cell nuclear transfer. But they were divided on whether to go further by calling for a federal law that would impose a complete ban on human cloning. Shapiro and most members favored an appeal for such legislation, but in a phone interview, he said this issue was still "up in the air".

单选题{{B}}Passage Five{{/B}} How physically attractive someone is plays a major role in determining your ideas about the desirability of developing an acquaintance or a friendship with that person. Attractiveness seems to influence our perception of others' traits. Attractive people are judged to be more poised, sociable, independent, interesting, exciting, and to have greater sexual warmth. In one study concerned with the importance of physical attractiveness, Karen Dion and her colleagues asked university students to rate a series of photographs of both males and females as high, average, or low in physical attractiveness. The photos were then passed onto another group of students, who were asked to rate those pictures on a number of personality traits and to predict future events in their lives. The results showed that, regardless of whether the rater(评判人) was the same or the opposite sex as the subject, attractive people of both sexes were rated as having more socially desirable personality traits than less attractive people. In addition, attractive people were predicted to have greater personal happiness and more prestigious future occupations than less attractive people. These impressions of beautiful people do not suddenly appear during adolescence. As early as age 4 or 5, attractive children are more popular with their peers than their unattractive counter parts. Adults also form more favorable impressions of attractive children. In one study, women read a description of an aggressive act performed by a 7-year-old child. The description was ac companied by a photograph of either an attractive child or an unattractive one.. When the women were asked to describe the child whose picture they had seen, they characterized the unattractive child as bratty(讨厌的), selfish, and antisocial. The attractive child was likely to be excused for aggressive acts because these were assumed to be deviations(偏离) from the youngster's usual behavior. Attractive people are apparently not unaware of their effect on other people. Being attractive may help determine the way that people actually behave as well a show they are perceived. Attractive males are more assertive(武断的) than less attractive males. They also have less fear of rejection and have more of their social interactions with females than with males. Attractive females are not as assertive as females who are less attractive, but both groups of women have an equal number of social interactions.

单选题You needn"t introduce him to me. I"ve met him on several ______.

单选题A: May I make a recommendation, sir? The lobsters are very fresh today. B: ______

单选题______ France Viuard an excellent political speaker but she was also among the first members of the Populist party.

单选题Woman: Wally, the necklace is beautiful, but really, you shouldn't have!Man: You're welcome. I think it looks beautiful on you.Question: What did Wally do for the woman?

单选题Hunger is no novelty. We can discount legends of golden ages, lands of Cockayne, and Megasthenes" statement that before Alexander"s invasion of India, there had never been famine or food shortage there. Trustworthy historical records show that during the Renaissance one year in ten in Britain, and one in five in Europe, was a famine year. China, with a greater area and more diverse climate, had a famine in some region every year. Famine is a state of affairs in which people are dying in the streets: It therefore attracts the notice of historians and is recorded. The fact that it strikes people who are aware of having been properly fed and well is more important. Not only are the survivors more adjustable, they are also angry at the breakdown of the system and eager to do something about it though it is obvious from the record that they do not always have the means. Malnutrition is much more underhanded. It is a chronic state in which the total food supply or, more often, the supply of certain components such as protein or some of the vitamins, is inadequate. It seems probable that, either constantly or seasonally, it used to be the usual condition of mankind and was regarded as normal. The unhealthy appearance of the figures in medieval paintings and drawings is often put down to the incompetence of the artist: it is as likely that most people really did look like that. The plentifulness with which poets greeted the merry month of May, in our dull climate, has had a climatic basis: it is just as likely that in May, after six months" shortage, there was now an adequate vitamin supply. The promptness with which some sailors died of scurvy (坏血病) after leaving port suggests that they were normally on the edge of scurvy and needed only a slight worsening of conditions to get it acutely. Others will think of other examples. Hunger and malnutrition are components of a classic example of a vicious circle. They lead to enfeeblement or unfeelingness in which nothing either can be done, or seems to be worth doing, to alter the state of affairs; this leads to more hunger and malnutrition. There is good reason to think that, in much of the developing world, if the circle could once be broken, it need never return.

单选题Scientists have long argued over the relative contributions of practice and native talent to the development of elite performance. This debate swings back and forth every century, it seems, but a paper in the current issue of the journal Psychological Science illustrates where the discussion now stands and hints—more tantalizingly, for people who just want to do their best—at where the research will go next. The value-of-practice debate has reached a stalemate. In a landmark 1993 study of musicians, a research team led by K. Anders Ericsson found that practice time explained almost all the difference (about 80 percent) between elite performers and committed amateurs. The finding rippled quickly through the popular culture, perhaps most visibly as the apparent inspiration for the "10,000-hour rule" in Malcolm Gladwell"s best-selling "Outliers"—a rough average of the amount of practice time required for expert performance. The new paper, the most comprehensive review of relevant research to date, comes to a different conclusion. Compiling results from 88 studies across a wide range of skills, it estimates that practice time explains about 20 percent to 25 percent of the difference in performance in music, sports and games like chess. In academics, the number is much lower—4 percent—in part because it"s hard to assess the effect of previous knowledge, the authors wrote. One of those people, Dr. Ericsson, had by last week already written his critique of the new review. He points out that the paper uses a definition of practice that includes a variety of related activities, including playing music or sports for fun or playing in a group. But his own studies focused on what he calls deliberate practice: one-on-one lessons in which an instructor pushes a student continually, gives immediate feedback and focuses on weak spots. "If you throw all these kinds of practice into one big soup, of course you are going to reduce the effect of deliberate practice," he said in a telephone interview. Zach Hambrick, a co-author of the paper of the journal Psychological Science , said that using Dr. Ericsson"s definition of practice would not change the results much, if at all, and partisans on both sides have staked out positions. Like most branches of the nature-nurture debate, this one has produced multiple camps, whose estimates of the effects of practice vary by as much as 50 percentage points.