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 (The following is based on material written in 1996.)
 
 
  
 
 The Montreal Protocol on Substances that Deplete the Ozone Layer, signed in 1987 by more than
 
 
  
 
 150 nations, has attained its short-term goals: it has decreased the rate of increase in amounts of
 
 
  
 
 most ozone-depleting chemicals reaching the atmosphere and has even reduced the atmospheric
 
 
  
 
 levels of some of them. The projection that the ozone layer will substantially recover from ozone
 
 
  
 
 depletion by 2050 is based on the assumption that the protocol’s regulations will be strictly
 
 
  
 
 followed. Yet there is considerable evidence of violations, particularly in the form of the release of
 
 
  
 
 ozone-depleting chlorofluorocarbons (CFC’s), which are commonly used in the refrigeration,
 
 
  
 
 heating, and air conditioning industries. These violation reflect industry attitudes; for example, in
 
 
  
 
 the United States, 48 percents of respondents in a recent survey of subscribers to Air Conditioning,
 
 
  
 
 Heating, and Refrigeration News, and industry trade journal, said that they did not believe that
 
 
  
 
 CFC’s damage the ozone layer. Moreover, some in the industry apparently do not want to pay for
 
 
  
 
 CFC substitutes, which can run five times the cost of CFC’s. Consequently, a black market in
 
  
 imported illicit CFC’s has grown. Estimates of the contraband CFC trade range from 10,000 to
 
 
  
 
 22,000 tons a year, with most of the CFC’s originating in India and China, whose agreements
 
 
  
 
 under the Protocol still allow them to produce CFC’s. In fact, the United States Customs Service
 
  
 reports that CFC-12 is a contraband problem second only to illicit drugs
 
  
 
 
 
 
 
 
 285. The passage suggests which of the following about the illicit trade in CFC’s?
 
 
  
 
 (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.
 
  
 
 
 
 
 
 看了解释后我也觉得D对 
 
 
 
 
 我选的是C,我觉得黄色部分可以推出C选项,请牛人帮忙看一下 
 
 [此贴子已经被作者于2005-5-31 23:13:37编辑过]  |