E-mail, as well as telephone, ______ an

搜题请搜索小程序“爱下问搜题”

问题选择题

E-mail, as well as telephone, ______ an important part in daily communication.[ ]

A. is playing

B. have played

C. are playing

D. played

答案

答案：A

改错题

短文改错。

假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。

文中有10处错误，要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号(∧)，并在其下面写上该加的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

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11处起)不计分。

Here are two types of cars that may some day take place of today's big cars. If all the people drive such

cars in the future, there will be less pollutions in the air. There will also have more space for parking cars in

the cities, but the streets will not be so crowded. Three such cars can fit the space now need by one car of

the usually size. The little cars will spend much too less to own and drive. Driving will be safe, too, because

these little cars can go only 65 kilometers per hour. But it will not be of any use for long trips.

_______________________________________________________________________________________

单项选择题

女，22岁，下颌中切牙釉质的白色不透明区不超过唇面的50%，但超过唇面的25%，其Dean氟牙症分类指数为

A．0.5

B．1

C．2

D．3

E．4