【多选题】
燃烧产物对灭火工作不利方面是___。
A. 难以判断燃烧物质
B. 引起人员中毒 、窒息
C. 易使人员受伤
D. 影响视线
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答案
BCD
解析
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合成高分子材料燃烧会生成___等许多有毒或刺激性的气体。
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下列物质___为完全燃烧产物。 
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火焰是由___构成的。
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【多选题】
闪点在消防上的应用主要表现在___。
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___不是划分易燃可燃液体火灾危险性的重要依据。
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不属于乙类可燃液体闪点的是___。
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___的闪点>28°C。
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【多选题】
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【多选题】
___属于特别重大火灾。
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气体物质燃烧分为___。
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按爆炸物质在爆炸过程中的变化,爆炸分为___。
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易燃固体的火灾危险性是___。
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___的燃烧属于表面燃烧。
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