题目

两滴水银相互接近时能自动结合为一滴较大的水银滴,这一事实说明             〔   〕A. 分子间存在斥力                   B. 分子间有间隙C.物质间有扩散的现象               D.分子间存在引力  答案:B解析: 假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。增加:在缺词处加一个漏字符号(Λ),并在其下面写出该加的词。删除:把多余的词用斜线(\)划掉。修改:在错的词下划一横线,并在该词下面写出修改后的词。注意:1.每处错误及其修改均仅限一词;2.只允许修改10处,多者(从第11处起)不计分。Hello, boys and girls! Today, I am going to talk about that you should do when a fire alarm go off. If you hear the alarm, stand in line at the door and wait your teacher to lead you outside. Stay closely to your teacher and classmate. Don't panic or get out of line, and try to remain quietly and calm. Soon the firefighters will come and put out a fire. Whether it's a false alarm and there is no fire, your teacher will lead us back to the classroom. If you notice that someone is missing or hurt, tell your teacher immediate.
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