把一小块白磷放在空气中加热到40℃时就能燃烧但将其置于盛有80℃水的烧杯中却并不燃烧其原因是 A.温度没有达到着火点b.白磷的质量太 Template




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tomski把一小块白磷放在空气中加热到40℃时就能燃烧但将其置于盛有80℃水的烧杯中却并不燃烧其原因是 a.温度没有达到着火点b.白磷的质量太 coloring