2. 专升本
  3. We are using up our natural resources too quickly and at same time we are______ our environment with dangerous chemicals.

We are using up our natural resources too quickly and at same time we are______ our environment with dangerous chemicals.

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问题 We are using up our natural resources too quickly and at same time we are______ our environment with dangerous chemicals.
选项 A、protecting
B、saving
C、polluting
D、fighting
答案C
解析 本题考查动词辨析。句中and at the same time表示递进，所以选择pollute合乎逻辑。
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