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Although other nations contributed to North Sea pollution,much of the contamination

来源 :焚题库 2022-06-13

单选题Although other nations contributed to North Sea pollution,much of the contamination was traced back to Britain.
 

A.tracked

B.marked

C.traversed

D.dated

参考答案:A

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答案解析:词义辨析。根据上下文,题干大意为“追溯源流”,D选项最易混淆,注意date back to是动词短语,替换部分之前有be,若选择,则词形有误。

 

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