The drinking water is contaminated with impurities.A:blackened B:polluted C:da

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问题 The drinking water is contaminated with impurities.

选项 A:blackened
B:polluted
C:darkened
D:mixed

答案B

解析本句意思：饮用水被杂质污染了。contaminate意为“弄脏，污染”，与pollute（污染）意思相近。blacken使变黑；darken使变暗；mix混合。

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