2. 外语
  3. At present, man’s efforts ______. The writer thinks that the major cause of pollution is ______.

At present, man’s efforts ______. The writer thinks that the major cause of pollution is ______.

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问题 At present, man’s efforts ______.
The writer thinks that the major cause of pollution is ______.
选项 A、increasing industrialization
B、the modern way of life
C、man
D、none of the above
答案C
解析 A项“工业化”，B项“现代生活”，C项“人类”都是引起污染的因素，但工业化和现代生活也是由人引起的，因此C最为贴切准确。
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