液化石油气当与空气混合达到一定浓度范围（）时，遇明火极易发生爆炸。
A.5%-10%
B.2.5%-10%
C.4.5%-10%
D.1.5%-10%
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正确答案： D 答案分析：无
包含此试题的试卷：
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D.1.5%-10%
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B.2.5%-10%
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B.2.5%-10%
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B.2.5%-10%
C.4.5%-10%
D.1.5%-10%
