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已选分类 文学外国语言文学
单选题Which of the following is an endocentric compound?
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单选题 For the past two years in Silicon Valley, the centre of America's technology industry, conference-goers have entertained themselves playing a guessing game: how many times will a speaker mention the phrase "long tail"? It is usually a high number, thanks to the influence of the long-tail theory, which was first developed by Chris Anderson, the editor of Wired magazine, in an article in 2004. Though technologists and bloggers chuckle at how every business presentation now has to have its long-tail section, most are envious of Mr. Anderson, whose brainwave quickly became the most fashionable business idea around. Whether a blockbuster film, a bestselling novel, or a chart-topping rap song, popular culture idolises the hit. Companies devote themselves to creating them because the cost of distribution and the limits of shelf space in physical shops mean that profitability depends on a high volume of sales. But around the beginning of this century a group of internet companies realised that with endless shelves and a national or even international audience online they could offer a huge range of products—and make money at the same time. The niche, the obscure and the specialist, Mr. Anderson argues, will gain ground at the expense of the hit. As evidence, he points to a drop in the number of companies that traditionally calculate their revenue/sales ratio according to the 80/20 rule—where the top fifth of products contribute four-fifths of revenues. Ecast, a San Francisco digital jukebox company, found that 98% of its 10000 albums sold at least one track every three months. Expressed in the language of statistics, the experiences of Ecast and other companies such as Aragon, an online bookseller, suggest that products down in the long tail of a statistical distribution, added together, can be highly profitable. The internet helps people find their way to relatively obscure material with recommendations and reviews by other people, (and for those willing to have their artistic tastes predicted by a piece of software) computer programs which analyse past selections. Long-tail enthusiasts argue that the whole of culture will benefit, not just commercial enterprises. Television, film and music are such bewitching media in their own right that many people are quite happy to watch and listen to what the mainstream provides. But if individuals have the opportunity to pick better, more ideally suited entertainment from a far wider selection, they will take it, according to the theory of the long tail. Some analysts reckon that entire populations might become happier and wiser once they have access to thousands of documentaries, independent films and subgenres of every kind of music, instead of being subjected to what Mr. Anderson calls the tyranny of lowest-common-denominator fare. That might be taking things a bit far. But the long tail is certainly one of the internet's better gifts to humanity.
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单选题Let us assume, for the moment, that labor is not prepared to work for a lower money-wage and that a reduction in the existing level of money-wages would lead, through strikes or otherwise, to a withdrawal from the labor market of labor which is now employed. Does it follow from this that the existing level of real wages accurately measures the marginal disutility of labor? Not necessarily. For, although a reduction in the existing money-wage would lead to a withdrawal of labor, it does not follow that a fall in the value of the existing money-wage in terms of wage-goods would do so, if it were due to a rise in the price of the latter. In other words, it may be the case that within a certain range the demand of labor is for a minimum money-wage and not for a minimum real wage. The classical school has tacitly assumed that this would involve no significant change in their theory. But this is not so. For if the supply of labor is not a function of real wages as its sole variable, their argument breaks down entirely and leaves the question of what the actual employment will be quite indeterminate. They do not seem to have realized that. Unless the supply of labor is a function of real wages alone, their supply curve for labor will shift bodily with every movement of prices. Thus their method is tied up with their very special assumptions, and cannot be accepted to deal with the more general case. Now ordinary experience tells us, beyond doubt, that a situation where labor stipulates (within limits) for a money-wage rather than a real wage, so far from being a mere possibility, is the normal case. Whilst workers will usually resist a reduction of money-wages, it is not their practice to withdraw their labor whenever there is a rise in the price of wage-goods. It is sometimes said that it would be illogical for labor to resist a reduction of money-wages but not to resist a reduction of real wages. For reasons given below, this might not be so illogical as it appears at first; and, as we shall see later, fortunately so. But, whether logical or illogical, experience shows that this is how labor in fact behaves. Moreover, the contention that the unemployment which characterizes a depression is due to a refusal by labor to accept a reduction of money-wages is not clearly supported by the facts. It is not very plausible to assert that unemployment in the United States in 1932 was due either to labor obstinately refusing to accept a reduction of money-wages or to its obstinately demanding a real wage beyond what the productivity of the economic machine was capable of furnishing. Wide variations are experienced in the volume of employment without any apparent change either in the minimum real demands of labor or in its productivity. Labor is not more truculent in the depression than in the boom.... far from it. Nor is its physical productivity less. These facts from experience are a prima facie ground for questioning the adequacy of the classical analysis.
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单选题Advocates of linguistic determinism insist that ______.
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单选题It' s no use______about the bad service in this hotel.
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单选题Astronomers (have increases) their observation powers (greatly) through (improved) high-powered telescope, computer simulations and (coordinate) with other scientists.
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单选题John and I have been ______ for years. In fact, we haven't seen each other since high school.
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单选题Globalization is a phenomenon that has been affecting countries and societies for several decades, but the outline of the global system has only emerged with some clarity recently. The rise of global markets and the increase in speed and volume of international transactions has brought about a degree of interdependence and co-operation in economic matters among states that has not so far been matched by a corresponding increase in respect for and protection of human rights and democracy. Indeed, many democracies are still fragile, and have not made the transition from viewing democratic practices as instrumental to having a widely shared principled commitment to the democratic and constitutional framework. The rise of global economic networks has led to a rise in the influence of global actors such as multi-national corporations, global economic bodies such as the WTO, the World Bank, the IMF and regional economic organizations. These constitute a new form of global governance whose directives and imperatives states find increasingly difficult to ignore. The established international political organizations have not come close to replicating this effectiveness. Predictions that the phenomenon of globalization will result in a lowering of human rights standards as the mobility of capital seeks out the markets least constrained by labor and human rights standards to maximize the highest returns need not be the case. The role of human rights organizations in this context must be to ensure that globalization drives standards up not down, and to present the case that freedom of expression and access to official information are key to sustainable human and economic development and the prevention of corruption, which in turn support the conditions necessary for sustainable economic growth. With the demand for global trade to go hand in hand with global responsibility international financial institutions are coming under increasing pressure to regulate the global economy not simply to facilitate economic growth, but to promote compliance with human development, including international human rights norms. Multinational corporations have also been forced to recognize a degree of corporate social responsibility in the areas in which they operate and in the communities on which they have an impact. Transparency in the operations of such companies is becoming increasingly important to their gaining access to capital. They are more and more accountable to shareholders, who, in turn are increasingly diffuse and numerous. The pursuit of "shareholder value" means that there is score to ensure that the investor—citizen has a say in the way that companies conduct themselves. The task for those promoting free expression is to harness new technologies to challenge censorship, and to harness the power and influence of new global actors to ensure that they not only take the arguments for free expression on board, but become vocal advocates for such rights.
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单选题The meeting had been ______ until next Sunday.
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单选题Einstein was a man deeply ______ to the ideal of the morally responsible scientist.
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单选题D. He doesn't want to tell the woman why he was not there.
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单选题 阅读下列短文,然后根据短文的内容从每小题的四个选项中选出最佳的一项,并把它前面的大写字母填入左边的括号里。{{B}}A{{/B}} Very soon a computer will be able to teach you English. It will also be able to translate any language for you too. It's just one more incredible result of the development of microprocessors--those tiny parts of a computer commonly known as "silicon chips". So give up going to classes, stop buying more textbooks and relax. In a couple of years you won't need the international language of English. Already Texas instruments in the United States is developing an electronic translation machine. Imagine a Spanish secretary, for example, who wants to type a letter from the boss to a business man in Sweden. All he or she will have to do is this; first type the letter in Spanish. The letter will appear on a television screen. After a few seconds the translated letter will appear on another television screen in Stockholm in perfect Swedish. And that's not all. Soon a computer will be able to teach you English, if you really want to learn the language. You'll sit in front of a television screen and practise endless structures. The computer will tell you when you are correct and when you are wrong. It will even talk to you because the silicon chips can change electrical impulses into sounds. And clever programmers can predict the responses you, the learner, are likely to make. So think of it. You will be able to teach yourself at your own pace. You will waste very little time, and you can work at home. And if after all that, you still can't speak English you can always use the translating machine. In a few years, therefore, perhaps there will be no need for BBC Modern English, or BBC English by Radio programs--no more textbooks or teachers of English. Instead of buying an exciting new textbook, the computer will ask you to replace it with microprocessor one thousand nine hundred and eighty-four. Fast, reliable and efficient language learning and translating facilities will be available to you. Think of that no more tears or embarrassing moments. One little problem is that a computer can't laugh yet-- but the scientists are working on it. Happy learning!
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单选题Metonymy involves using the familiar to stand for the unfamiliar. (对外经贸2005研)
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单选题There are a thousand reasons why more research is needed on solar energy.
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单选题Not until she bought her ticket and turned to walk away______that she was a streetcar conductor.
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单选题If you are caught in a downpour, it is better to run for shelter than walk, researchers in the US advise. This may sound obvious, but an earlier study in Britain suggested that you would get just as wet running as walking. In 1995, Stephen Belcher of the University of Reading and his students calculated how much water falls on top of your head and how much you sweep up on your front as you move forward. Obviously, you would get wettest standing still, and less wet the faster you moved. But the Reading team found that the benefits of running faster than about 3 metres per second—which they described as a walking pace—were tiny. Thomas Peterson and Trevor Wallis, meteorologists at the National Climatic Data Center in Asheville, North Carolina, had a hunch that this was wrong. They realized that the Reading team had overestimated the average walking pace, so they reworked the calculations for a walking pace of 1.5 metres per second and a running speed of 4 meters per second. Peterson and Wallis conclude in the latest issue of Weather that a walker would get 16 per cent wetter than a runner over a distance of 100 meters in drizzle. In heavy rain, this would rise to 23 per cent. When the researchers allowed for the way that runners tend to lean forward, sheltering the front of their bodies but increasing the rainfall on their backs, they found that a walker would get 36 per cent wetter than a runner in heavy rain. Not content with theory alone, Peterson and Wallis decided to test their ideas. " If verification requires an $ 80 million satellite, one may have to forgo verification, " says Peterson. "But if it involves a simple experiment, that" s another matter. " Peterson and Wallis are roughly the same size. Wearing identical clothing, one ran 100 meters in heavy rain and the other walked. They weighed their clothes before and after the experiment. This showed that the walker bad absorbed 0.22 kilograms of water, while the runner had soaked up only 0. 13 kilograms. This is about 40 per cent less, is line with the model" s predictions. Belcher says that his team" s work was a bit of fun, and that apart from the confusion over what a typical walking speed is, their results were similar to those of Peterson and Wallis. "I"m delighted to see that their experiments gave results in qualitative agreement with the model," says Belcher. But why not just take an umbrella? For anyone thinking of taking the easy way out, Wallis has a warning: "Running with an umbrella has a negative impact on your aerodynamics. "
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单选题In relation to the "writers on management" mentioned in Para. 2, the text suggests that they
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