单选题[此试题无题干]

单选题[此试题无题干]

单选题In a few decades

单选题Questions 1 to 10 are based on the following passage.Depression is a serious condition that_____1___ around 16 million U.S.adults.The condition is more common in women, but new research suggests that

单选题 In those days

单选题Questions 1 to 5 are based on the following passage.Scientists have found that eating dark chocolate appears to lower the risk of depression by four fold.While 7.6 percent of the 13,000 people surveye

单选题 As many as five courses are provided

单选题. Old people are always saying that the young are not what they were. The same comment is made from generation to generation and it is always true. It has never been truer than it is today. The young are better educated. They have a lot more money to spend and enjoy more freedom. They grow up more quickly and are not so dependent on their parents. They think more for themselves and do not blindly accept the ideals of their elders. Events which the older generation remembers vividly are nothing more than past history. This is as it should be. Every new generation is different from the one that preceded it. Today the difference is very marked indeed. The old always assume that they know best for the simple reason that they have been around a bit longer. They don't like to feel that their values are being questioned or threatened. And this is precisely what the young are doing. They are questioning the assumptions of their elders and disturbing their complacency. Office hours, for instance, are nothing more than enforced slavery. Wouldn't people work best if they were given complete freedom and responsibility? And what about clothing? Who said that all the men in the world should wear drab grey suits and convict haircuts? If we ruin our minds to more serious matters, who said that human differences can best be solved through conventional politics or by violent means? Why have the older generation so often used violence to solve their problems? Why are they so unhappy and guilt-ridden in their personal lives, so obsessed with mean ambitions and the desire to amass more and more material possessions? Haven't the old lost touch with all that is important in life? These are not questions the older generation can shrug off lightly. Their record over the past forty years or so hasn't been exactly spotless. Traditionally, the young have turned to their elders for guidance. Today, the situation might be reversed. The old—if they are prepared to admit it—could learn a thing or two from their children. One of the biggest lessons they could learn is that enjoyment is not "sinful". Enjoyment is a principle one could apply to all aspects of life. It is surely not wrong to enjoy your work and enjoy your leisure, to shed restricting inhibitions. It is surely not wrong to live in the present rather than in the past or future.1. What's the old generation's comment on the young?

单选题3. The toy maker produces a ______ copy of the space station, exact in every detail.

单选题. There is writes Daniele Fanelli in a recent issue of Nature, something rotten in the state of scientific research—an epidemic of false, biased, and falsified findings where "only the most egregious cases of misconduct are discovered and punished." Fanelli is a leading thinker in an increasingly alarming field of scientific research: one that seeks to find out why it is that so many scientific researches turn out to be wrong. For a long time the focus has either been on industry funding as a source of bias, particularly in drug research, or on those who deliberately commit fraud, such as the spectacular ease of Diederik Stapel, a Dutch social psychologist who was found to have fabricated at least 55 research papers over 20 years. But an increasing number of studies have shown that flawed research is a much wider phenomenon, especially in the biomedical sciences. Indeed, the investigation into Stapel also blamed a "sloppy" research culture that often ignored inconvenient data and misunderstood important statistical methods. "There's little question that the scientific literature is awash(充斥着) in false findings—findings that if you try to replicate you'll probably never succeed or at least find them to be different from what was initially said," says Fanelli. "But people don't appreciate that this is not because scientists are manipulating these results, consciously or unconsciously; it's largely because we have a system that favors statistical flukes (侥幸) instead of replicable findings." This is why, he says, we need to extend the idea of academic misconduct (currently limited to fabrication, falsification, or plagiarism) to "distorted reporting"—the failure to communicate all the information someone would need to validate your findings. Right now, he says, we're missing all the "unconscious biases, the systemic biases, the practices, mistakes, and problems that hardly ever count as cheating", even though they have a very important—and probably the largest—effect on creating technically false results in the literature. One particularly challenging bias is that academic journals tend to publish only positive results. As Isabelle Boutron, a professor of epidemiology at René Descartes University in Paris, points out, studies have shown that peer reviewers are influenced by trial results; one study showed that they not only favored a paper showing a positive effect over a near-identical paper showing no effect, they also gave the positive paper higher scores for its scientific methods. And Boutron has herself found extensive evidence of scientists spinning their findings to claim benefits that their actual results didn't quite support. "We need a major cultural change," says Fanelli. "But when you think that, even 20 years ago, these issues were practically never discussed, I think we're making considerable progress."1. Which of the following is true about Fanelli's article in Nature?

单选题. Questions 12 to 15 are based on the passage you have just heard.4.

单选题. Questions 1 to 4 are based on the conversation you have just heard.1.

单选题 Competition, they believe

单选题5. The Post-World War II baby ______ resulted in a 43 percent increase in the number of teenagers in the 1960s and 1970s.

单选题《复合题被拆开情况》 The U.S. and China don’t agree on much these days. Germany and France share a border and a currency but are frequently at odds. The U.K. and India like to march to their own drum. But there

单选题 In this poor country