试题与答案

气态的液化石油气比重是空气的（）倍，它扩散后处于空气的下部，可以由高处流向低洼的地方

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题型：填空题

题目：

气态的液化石油气比重是空气的（）倍，它扩散后处于空气的下部，可以由高处流向低洼的地方，积存在通风不好和不易扩散的地方。

答案：

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参考答案：C

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