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    精英家教网 > 初中英语 > 题目详情

    We all know that paper burns in  _________ .

    A．CO2             B．N2               C． O2              D．CO

     

    【答案】

    C

    【解析】

    试题分析：根据语境可知此句的含义是我们都知道纸在氧气中燃烧。有化学知识可知选择C。

    考点：生活常识

    点评：此题考查了学科之间的联系。

     

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