什么是抵押的有效性？

杭州市2011年元旦的最高气温为8℃，最低气温为-4℃，这天的最高气温比最低气温高（　　）

A．-12℃

B．12℃

C．-4℃

D．4℃

由于头颅外伤、耳气压伤或急、慢性声损伤导致内耳损害引起的听力障碍是（）。

A.突发性聋

B.噪音性聋

C.老年性聋

D.创伤性聋

E.外伤性聋

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.

     Ten years 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 concentrate 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 all the 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 word“obsessional”in the second paragraph most 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．positive

C．oppositive          

D．acceptable

小儿脐风经络闭阻临床可见（）

A.烦躁啼哭

B.二便不通

C.不啼不乳

D.张口不利，苦笑面容

E.颈项强直，四肢抽搐

钱某与某公司签订的劳动合同约定，该劳动合同到2009年6月30日终止。2009年7月1日以后，钱某照常上班，公司并未提出异议，一周后，公司通知周某，称双方劳动合同已终止，周某不用再来上班了，但周某不服。下列关于双方的纠纷说法中，正确的是( )。

A．双方权利义务关系终止，公司的要求合法，无须向周某支付经济补偿金
B．公司可即时解除劳动合同，但须向周某支付替代通知期工资
C．公司可即时解除劳动合同，但须向周某支付经济补偿金
D．公司属于违法解除劳动合同，应按经济补偿标准的两倍向周某支付赔偿金