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标题: 大全-b-2 [打印本页]

作者: WalkByFaith 时间: 2004-8-21 01:06
标题: 大全-b-2

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.

(D) An increase in the number of bird species in and around a city is desirable.（A）

(E) The increased sightings of bird species in and around London reflect an actual increase in the number of species in the area.

难道A) 不是个assumption吗, 怎么是except??

作者: wcai 时间: 2004-8-21 01:56
我认为可以在A或E中选。A：almost entirely 太强，这可能不是作者所假设的。E：可以说 increased sightings of bird species in and around London 足以说明空气质量的改善，不需要假设：只有the number of species of birds actually increased, 才说明空气质量改善了。鉴于此，我认为选 E 更好。

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