问题 单项选择题 共用题干题

患者女性,70岁,全牙列缺失,主诉原下颌义齿固位较差,要求重新修复,查见患者下颌牙槽嵴严重吸收,上颌牙槽嵴尚可,颌位关系正常

按中性区排牙与按牙槽嵴顶排牙相比,中性区排牙的主要效果是()

A.获得更好的支持和固位

B.获得更好的固位和稳定

C.获得更好的支持和稳定

D.有利于力的传导

E.以上都不对

答案

参考答案:B

阅读理解

阅读理解。

        根据短文内容,判断下列句子的正误,正确的用“A,错误的用“B。

     Some years ago, Chinese high school students would show their new

schoolbags, new clothes or new pens to their classmates when the new term

started.  Today, however, all have changed.  If you still come back to school

with only these things, you are falling out of date.  Students in big cities like

to bring the latesc high-tech things to school, and feel happy and pleased to

show off these things toothers. They are mobile phonf,S, MP4 players, CD

players, electronic dictionaries and so on. The list is endless.

     Young people think that, living in the 21st century, they must keep up

with the date. They don't want to fall behind. Besides, they think that they

need to keep in touch with their classmat.es, so they need mobile phones.

They also like to listen to the pop music, so they need C.D players. They

explain that something like electronic dictionaries can be useful in their

study, too.  They think that their parents should understand why they want

these things.

     Foreign students will also bring some latest high-tech things when they

retum to school at the beginning of a new term. However, they often use the

money which they macie by themselves during the holiday to buy these

high-tech things that they want.

( )1. Today, Chinese students like showing off their new clothes.

(     )2. The students need mobile phones in order to keep in touch with their

classmates.

(     )3. Young people living in the 21st century don't want to be out of date.

(     )4. Foreign students also like to bring some high-tech things at the cnd of the term.

(     )5. Chinese students spend the money which they made by themselves on

the high-tech things.

单项选择题