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大全-B-2

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楼主
发表于 2003-10-31 07:31:00 | 只看该作者

大全-B-2

Test B
2.In the years since the city of London imposed strict air-pollution regulations on local industry, the number of bird species seen in and around London has increased dramatically. Similar air-pollution rules should be imposed in other major cities.
Each of the following is an assumption made in the argument above EXCEPT:
(A) In most major cities, air-pollution problems are caused almost entirely by local industry.
(B) Air-pollution regulations on industry have a significant impact on the quality of the air.
(C) The air-pollution problems of other major cities are basically similar to those once suffered by London.
(D) An increase in the number of bird species in and around a city is desirable.
(E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area.
显示正确答案是A,但是觉得应该是D
如果A取非,那么,结论必不成立,因为原regulations是针对local industry而起作用的,若其他地方的local industry不是主要污染源,那么,类似的regulations就无法起到有效作用。

沙发
 楼主| 发表于 2003-10-31 07:33:00 | 只看该作者
想明白了
板凳
发表于 2003-11-18 23:20:00 | 只看该作者
這提我的想法也跟你一樣
有人可以講講嗎
地板
发表于 2003-11-18 23:54:00 | 只看该作者
這提我的想法也跟你一樣
有人可以講講嗎
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