题目内容

以下关于酒精灯的操作可能造成实验室内发生火情的是(不定项选择)

A. 添加酒精超过2/3
B. 用燃着的酒精灯点燃其他酒精灯
C. 吹灭酒精灯火焰
D. 精灯加完酒精后,未擦拭溅落在灯口的酒精

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权威只要和信息内容之间存在利益关系,那么权威所提供的信息就不可以轻易相信。()

A. 对
B. 错

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link和@import导入样式表有什么区别,请用自己的理解描述一下。(百度自己归纳)

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