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  3. The passage gives an overview of the effects of global warming on the United States. If American cars were slightly more effici

The passage gives an overview of the effects of global warming on the United States. If American cars were slightly more effici

admin2009-04-23  31
问题 The passage gives an overview of the effects of global warming on the United States.
If American cars were slightly more efficient, the United States would not be dependent on foreign oil.
选项 A、Y
B、N
C、NG
答案B
解析 If American cars were slightly more efficient，the United States would not be dependent on foreign oil．词汇线索为cars，more efficient，dependent on foreign oil，定位找到小标题Solutions下面列举点第一点：提高燃油使用效率将能够降低对进口石油的依赖性。发现主语的范畴与题目不符合，汽车效率的范畴大于燃油使用效率，故该题答案为N。
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