对下列词语的有关化学原理解释不合理的是( ) A.火上浇油——隔绝

对下列词语的有关化学原理解释不合理的是(  )

A.火上浇油——隔绝空气

B.风助火威——为燃烧提供足够多的氧气

C.釜底抽薪——燃烧需要可燃物

D.钻木取火——使温度达到可燃物的着火点

答案

【解析】A。本题考查燃烧和灭火的有关知识。火上浇油是为燃烧提供了可燃物,与隔绝空气无关;风助火威是指风大,空气流动快,为燃烧提供足够多的氧气,使燃烧更剧烈;釜底抽薪是指把柴火从锅底抽掉,燃烧不能继续进行,从而说明燃烧需要可燃物;钻木取火是指摩擦产生的热量达到了木头的着火点,木头就能燃烧。

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