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

游客2023-12-25  10

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

选项 A、tracked
B、marked
C、traversed
D、dated

答案 A

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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