单选题In Excerpt 3, the writer argues that pollution_____.Ahas increase since the eightiesBis at its worst in industrialized countriesCresults from poor relation between nationsDis caused by human self-interest

单选题
In Excerpt 3, the writer argues that pollution_____.
A

has increase since the eighties

B

is at its worst in industrialized countries

C

results from poor relation between nations

D

is caused by human self-interest


参考解析

解析:
根据Excerpt 3中的“Since the early eighties we have been only too aware of the devastating effects of large—scale environmental pollution”可以推知。B、C项在文中并未提及。D项只讲了污染是由人类为了自身利益而造成的,这属于发达国家的情况,但没包含发展中国家的情况。故A项为正确答案。

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