(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] |