4.下列关于燃烧与灭火的说法正确的是 A.所有的火灾都可用水�灭b.将煤块粉碎后再燃烧目的是延长煤燃烧的时间c.开屏隔离带可防治森林 Template




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tomski4.下列关于燃烧与灭火的说法正确的是 a.所有的火灾都可用水�灭b.将煤块粉碎后再燃烧目的是延长煤燃烧的时间c.开屏隔离带可防治森林 coloring