再提大全-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.
(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.

A的most和entirely都有绝对化的问题，作为答案应该没问题。

我的问题是E的an actual increase in the number of species in the area是不是无关选项？？，按理也可排除。

迷惑中？？？？？？？

E是一个必要条件，如果看到的情况不反映真实情况，则结论的正确性得到怀疑。

还是觉得有些牵强

不过比起正确答案来还是好一点

看来答案还是要比较哦

谢谢stoneren