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  3. According to the passage, which of the following best describes most ozone-deple

According to the passage, which of the following best describes most ozone-deple

游客2025-02-26  1
问题 According to the passage, which of the following best describes most ozone-depleting chemicals in 1996 as compared to those in 1987? [br] The passage suggests which of the following about the illicit trade in CFC’s?
选项 A、It would cease if manufacturers in India and China stopped producing CFC’s.
B、Most people who participate in such trade do not believe that CFC’s deplete the ozone layer.
C、It will probably surpass illicit drugs as the largest contraband problem faced by the United States Custom Services.
D、It is fostered by people who do not want to pay the price of CFC substitutes.
E、It has grown primarily because of the expansion of the refrigenration, heating, and air-conditioning industries in foreign countries.
答案 D
解析 The question asks what the passage implies about the illicit trade in CFC’s. The best answer is D. The passage states that some industry members appear not to want to pay the price of CFC substitutes, and that consequently a black market in cheaper CFC’s has emerged. This implies that the black market is fostered at least in part by those industry members who are unwilling to pay the higher price of CFC substitutes. Choice A can be eliminated because the passage states only that most contraband CFC’s originate in India and China. This does not imply that the illicit trade in CFC’s could not continue without manufacturers in those countries. Choice B is not correct because the passage does not provide information about the beliefs of participants in the illicit CFC trade. Choice C is incorrect because the passage states only that the United States Customs Service considers the illicit CFC trade to be a problem second only to the illicit drug trade:; there is no suggestion in the passage that the illicit CFC trade is expected to develop into a larger problem than the illicit drug trade. Choice E is incorrect because the passage attributes the growth of the illicit trade in CFC’s to the high cost of CFC substitutes, not to an expansion of refrigeration, heating, and air-conditioning industries in foreign countries.
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