2. 外语
  3. The passage gives a general description of ancient climate history. Scientists believe that the things people do that send ____

The passage gives a general description of ancient climate history. Scientists believe that the things people do that send ____

admin2009-04-23  70
问题 The passage gives a general description of ancient climate history.
Scientists believe that the things people do that send ______ gases into the air are making our planet warmer.
选项
答案greenhouse
解析 Scientists believe that the things people do that send ______ gases into the air are making our planet warmer．词汇线索为gas和warmer，定位后找到倒数第三段转折问后，则答案应该是 greenhouse。
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大学英语四级

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