试题与答案

瓦斯和煤尘同时存在时,瓦斯浓度越高,煤尘爆炸下限越低。

题型:判断题

题目:

瓦斯和煤尘同时存在时,瓦斯浓度越高,煤尘爆炸下限越低。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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