◎ 题干
In Copenhagen,the UN climate conference grew more tense and divisive asthe developing countries
didn't trust the promises made by the industrial countries to_____ greenhouse gas emission (排放) .
[     ]
A. cut out                
B. cut down                
C. cut off                
D. cut up
◎ 答案
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◎ 解析
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◎ 知识点
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