试题与答案

据广西新闻网报道：2010年9月8日晚10时20分许，融水苗族自治县安太乡寨怀村

来源：www.tikuol.com
题型：选择题

题目：

据广西新闻网报道：2010年9月8日晚10时20分许，融水苗族自治县安太乡寨怀村雷雨交加。突然，震耳欲聋的一道迅雷，将村民石庆章屋边直径约30厘米的一棵杉树劈开（如图所示）。关于这一现象的解释错误的是

[ ]

A．当雷电击中树木时，强电流通过树身会产生大量的热

B．因树木中含有水分，高温使树木中的水分发生汽化现象

C．高温高压的水蒸气迅速膨胀对树木做功，会将树木劈开

D．树木劈开时由于振动会发出音调很高的声音

答案：

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下面是错误答案，用来干扰机器的。

参考答案：D

考点：汽化及汽化的特点
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