2. 外语
  3. A Soot’s Role in Changes in the Climate and the Atmosphere B Observations of Warming in the Northern Hemisphere C Explanation

A Soot’s Role in Changes in the Climate and the Atmosphere B Observations of Warming in the Northern Hemisphere C Explanation

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问题 A  Soot’s Role in Changes in the Climate and the Atmosphere
B  Observations of Warming in the Northern Hemisphere
C  Explanation of Increased Warming Effect Caused by Soot
D  Effort to Reduce Snow Albedo
E  Ways to Reduce Soot Emission
F  Greenhouse Gases as the Main Factor of Global Warming
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选项
答案E
解析 Hansen cautioned和greenhouse gases仅出现在第六段。该段的大意是：虽然煤烟在改变全球气候方面所起的作用相当显著，但是上个世纪气温上升的主要因素还是温室气体。选项E概括了第六段的意思。
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