单选题WhatkindofweatherwillitbeWhendistantobjectssuchashillsandtalltreesseemtobeveryclearandnear?

单选题 Questions 17～20 are based on a radio interview about divorce. You now have 20 seconds to read Questions 17～20.

单选题What does this text try to show?

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单选题The phrase "a special breed of men" in Paragraph 3 most probably means ______.

单选题Real policemen hardly recognize any resemblance between their lives and what they see on TV. These are similarities, of course, but the cops don't think much of them. The first difference is that a policeman's real life revolves round the law. Most of his training is in criminal law, and what is more, he has to apply it on his feet, in the dark and rain, running down an alley after someone he wants to talk to. Little of his time is spent in chatting to a scantily-clad or in dramatic confrontation with desperate criminals. He will spend most of his working life typing millions of words on thousands of forms about hundreds of sad, unimportant people who are guilty—or not—of stupid, petty crimes. Most television crime drama is about finding the criminals as soon as he's arrested, the story is over. In real life, finding criminals is seldom much of a problem except in very serious cases like murders and terrorist attacks—whose failure to produce results reflects on the standing of the police. The police have an elaborate machinery which eventually shows up most wanted men. Having made an arrest, a detective really starts to work. He has to prove his case in court and to do that he often has to gather a lot of different evidence. Much of this has to be given by people who don't want to get involved in a court case. So, as well as being overworked, a detective has to be out at all hours of the day and night interviewing his witnesses and persuading them, usually against their own best interests, to help him. A third big difference between the drama detective and the real one is the unpleasant moral twilight in which the real one lives. Detectives are subject to two opposing pressures: first, as members of a police force they always have to get results. Second, they have to observe the rules. They can hardly ever do both. Most of the time some of them have to break the rules in small ways.

单选题It is believed by many that all these years the INS ______.

单选题The promise of finding long-term technological solutions to the problem of world food shortages seems difficult to fulfill Many innovations that were once heavily supported and publicized have since fallen by the wayside. The proposals themselves were technically feasible, but they proved to be economically unenviable and to yield food products culturally unacceptable to their consumers. One characteristic common to unsuccessful food innovations has been that, even with extensive government support, they often have not been technologically adapted or culturally acceptable to the people for whom they had been developed. A successful new technology, therefore, must fit the entire sociocultural system in which it is to find a place Security of crop yield, practicality of storage, and costs are much more significant than what had previously been realized by the advocates of new technologies. The adoption of new food technologies depends on more than these technical and cultural considerations; economic factors and governmental policies also strongly influence the ultimate success of any innovation. Economists in the Anglo-American tradition have taken the lead in investigating the economics of technological innovation. Although they exaggerate in claiming that profitability is the key factor guiding technical change -- they completely disregard the substantial effects of culture—they are correct in stressing the importance of profits. Most technological innovations in agriculture can be fully used only by large landowners and are only adopted if these profit-oriented business people believe that the innovation will increase their incomes, Thus innovations that carry high rewards for big agribusiness groups will be adopted even if they harm segments of the population and reduce the availability of food in a country. Further, should s new technology promise to alter substantially the profits and losses associated with any production system, those with economic power will strive to maintain and improve their own positions. Therefore, although technical advances in food production and processing will perhaps be needed to ensure food availability, meeting food needs will depend much more on equalizing economic power among the various segments of the populations within the developing countries themselves.

单选题If you are with someone who is bitten by an adder you should ______.

单选题Which of the following is within the capacity of the artificial nose being developed?

单选题The author say that France is the "great global Uncola" because______.

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单选题 Questions 14—16 are based on the following dialogue.