Drinking water in many areas of the developing world is contaminated with bacteria.

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问题 Drinking water in many areas of the developing world is contaminated with bacteria.

选项 A、purified
B、multiplied
C、tainted
D、blended

答案C

解析句意：发展中世界中很多地区的饮用水都遭到了细菌污染。contaminate污染。taint弄污；使污染。purify使纯净，净化。blend混和。

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医学博士外语

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