2. 外语
  3. Groundwater, a resource that exists everywhere beneath the Earth’s surface, is under increasing risk from contamination and over

Groundwater, a resource that exists everywhere beneath the Earth’s surface, is under increasing risk from contamination and over

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问题 Groundwater, a resource that exists everywhere beneath the Earth’s surface, is under increasing risk from contamination and overuse.
选项 A、popularization
B、contraction
C、pollution
D、industrialization
答案C
解析
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