2. 外语
  3. The chimney is no longer________volumes of waste gas into the atmosphere, as protective filters are being used.

The chimney is no longer________volumes of waste gas into the atmosphere, as protective filters are being used.

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问题 The chimney is no longer________volumes of waste gas into the atmosphere, as protective filters are being used.
选项 A、giving out
B、giving up
C、giving in
D、giving away
E、giving off
答案E
解析
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大学生英语竞赛（NECCS）

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