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    精英家教网 > 高中英语 > 题目详情
    Our earth is getting warmer and warmer. It is time for us to_____ the emission(排放) of CO2.
    A．break downB．cut inC．cut downD．cut off
    C

    试题分析：考查短语辨析。A. break down抛锚；B. cut in插嘴；C. cut down消减；D. cut off切断。句意：我们的地球变得越来越暖，是该我们消减二氧化碳排放的时候了。故C正确。
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