问题 单项选择题 共用题干题

患者男,70岁,上下颌牙列缺失,检查:见患者牙弓形态正常,牙槽嵴平整,较丰满,常规行全口义齿修复,制取蜡堤转移颌位记录 。

全口义齿排牙要求牙弓与颌弓相一致,即牙列可按颌弓基本形态排成方圆、尖圆、卵圆形。下列哪项与上述要求的目的无关 ()

A.有效的恢复患者面部外形

B.有利于后牙的排列

C.使咀嚼压力直接传导于牙槽嵴上

D.有利于舌体运动

E.有利于建立良好的单侧平衡牙合

答案

参考答案:B

不定项选择
阅读理解

阅读理解。

     A new generation addiction is quickly spreading all over the world. Weboholism, a twentieth century

disease, affects people from different ages. They surf the Net, use email and speak in chat rooms. They

spend many hours on the computer, and it becomes a compulsive habit. They cannot stop, and it affects

their lives. Decades ago, no one thought that using computers could become compulsive behavior that

could affect the social and physical life of computer users. This obsessional behavior has affected

teenagers and college students. They are likely to log on computers and spend long hours at different

websites.

     They become hooked on computers and gradually their social and school life is affected by this

situation. They spend all free time surfing and don't concentrated on homework, so this addiction

influences their grades and success at school. Because they can find everything on the websites, they

hang out there. Moreover, this addiction to websites influences their social life.

     They spend more time in front of computers than with their friends. The relation with their friends

changes. The virtual life becomes more important than their real life. They have a new language that

they speak in the chat rooms and it causes cultural changes in society.

     Because of the change in their behavior, they begin to isolate themselves from the society and live

with their virtual friends. They share their emotions and feelings with friends who they have never met

in their life. Although they feel confident on the computer, they are not confident with real live friends

they have known all their life. It is a problem for the future. This addictive behavior is beginning to affect

the entire world.

1. The main idea of the passage is about ______.  

A. the cause of weboholism  

B. the advantage of weboholism

C. the popularity of weboholism  

D. the influence of weboholism

2. The underlined world "obsessional" in the second paragraph probably means ______.

A. attractive  

B. addictive  

C. professional  

D. potential  

3. We can infer from the passage that ______.

A. weboholism has the greatest effect on teenagers

B. students can hardly balance real and virtual life

C. people are addicted to games on the Internet          

D. virtual life is more vivid and attractive anyway

4. Which of the following is NOT true of weboholism?

A. It contributes to the development of the web.

B. The chat room language may change social culture.

C. The problem will be getting more and more serious later.      

D. People addicted to the web often become inactive in real life.

5. The author's attitude towards weboholism is that of being ______.

A. optimistic    

B. neutral      

C. critical  

D. acceptable