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理工类每日一练(2019/7/19):Groundwater,aresourcethatexistsever

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每日一练:职称英语考试理工类每日一练(2019/7/19)
【单选题】Groundwater, a resource that exists everywhere beneath the Earth's surface, is under in-creasing risk from contamination and overuse,
A popularization
B contraction
C pollution
D industrialization

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