问题 选择题

下列物品中,通常情况下属于绝缘体的是(  )

A.人体

B.塑料尺

C.盐水

D.铁钉

答案

A、人体是导体.不符合题意.

B、塑料尺是塑料制品,属于绝缘体.符合题意.

C、盐水是盐的水溶液,属于导体.不符合题意.

D、铁钉是金属制品,属于导体.不符合题意.

故选B.

改错题

短文改错

     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处语言错误,每句中最多有两处.每处错误仅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(∧),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.

Dear Sir,

     How are you? As a exchange student,I am writing to tell you I would prefer to move into a single

room in next term,as I find it inconvenient to share a room with others. My roommate often held parties

at night, made much noise. Besides, his friends are always visiting him, that disturb me a lot. So I hope

to draw your attentions to this problem. If you think in my position,I am sure he will agree that the only

solution for me is get a room of my own,one not in the same building but as near to the school campus

as possible. I would be gratefully if you could do me the favor.

Best wishes.

                                                                  Yours sincerely,

                                                                        Li Ming

____________________________________________________________________________

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