每日一练：职称英语考试综合类每日一练(2017/12/20)
【单选题】
A lot of people could fall ill after drinking contaminated water.
A muddied B polluted C mixed D troubled
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每日一练：职称英语考试综合类每日一练(2017/12/20)
【单选题】
A lot of people could fall ill after drinking contaminated water.
A muddied B polluted C mixed D troubled
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