试题与答案

化学与生活密切相关，生活中的下列做法不合理的是（ ） A．高楼发生火灾，乘电梯逃

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题型：选择题

题目：

化学与生活密切相关，生活中的下列做法不合理 的是（　　）

A．高楼发生火灾，乘电梯逃生

B．用白醋除水壶中的水垢

C．家用电器着火，应先切断电源再用干粉灭火器灭火

D．用燃烧法区分羊毛纤维和合成纤维

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A

考点：安全措施和生活经验天然有机高分子材料灭火的原理和方法酸的性质
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