机械通气时镇静剂和镇痛剂使用的目的是（） A.使患者耐受气管插管 B.减轻患者的焦虑

心悸，失眠，盗汗，颧红，手足心发热，脉细数，舌红少苔。为（）。

A．表实寒证

B．表实热证

C．里实寒证

D．里虚寒证

E．里虚热证

下面句子中没有运用修辞手法的一项是：（ ）（2分）

A．山那边的山啊，铁青着脸/给我的理想打了一个零分！

B．香气似乎也是浅紫色的，梦幻一般轻轻地笼罩着我。

C．夏蚊成雷，私拟作群鹤舞于空中。

D．藤萝又开花了，那样盛，那样密，遮住了粗壮的盘虬卧龙般的枝干。

如已确诊为成釉细胞瘤，为防止复发，其治疗原则为

A．放射治疗

B．手术彻底刮除肿瘤

C．下颌骨切除加颈淋巴清扫术

D．下颌骨方块切除或病变颌骨整块切除

E．以上均不正确

阅读理解。

     NOT all memories are sweet. Some people spend all their lives trying to forget bad experiences.

Violence and traffic accidents can leave people with terrible physical and emotional scars. Often the

experiences in nightmares appear repeatedly.

     Now American researchers think they are close to developing a pill, which will help people forget

bad memories. The pill is designed to be taken immediately after a frightening experience. They hope it

might reduce, or possibly wipe out, the effect of painful memories.

     In November, experts tested a drug on people in the US and France. The drug stops the body

releasing chemicals that fix memories in the brain. So far, the research has suggested that only the

emotional effects of memories may be reduced, not that the memories are wiped out. They are not

sure to what degree people's memories are affected.

     The research has caused a lot of argument. Some think it is a bad idea, while others support it.

Supporters say it could lead to pills that prevent or treat soldiers' troubling memories after war. They

say that there are many people who suffer from terrible memories.

     "Some memories can ruin people's lives. They come back to you when you don't want to have them

in a daydream or nightmare. They usually come with very painful emotions," said Roger Pitman, a

professor of psychiatry at Harvard Medical School. "This could relieve a lot of that suffering."

      But those who are against the research say that maybe the pills can change people's memories and

changing memories is very dangerous because memories give us our identity. They also help us all avoid

the mistakes of the past.

     "All of us can think of bad events in our lives that were terrible at the time but make us who we are.

I'm not sure we want to wipe those memories out." said Rebecca Dresser, a medical ethicist (伦理学家).

1.The passage is mainly about        .

A. a new medical invention

B. a new research on the pill

C. an argument about the research on the pill

D. a way of wiping out painful memories

2. The drug tested on people can        .

A. cause the brain to fix memories

B. stop people remembering bad experiences

C. wipe out the emotional effects of memories

D. prevent body producing certain chemicals

3.We can infer from the passage that        .

A. Experts are not sure about the effects of the pills.

B. the pill will certainly stop people's emotional memories

C. taking the pill will do harm to people's physical health

D. the pill has already been produced and used by the public America

4.Which of the following does Rebecca Dresser agree with in the last paragraph?

A. some memories can ruin people's lives.

B. people want to get rid of bad memories.

C. experiencing bad events makes us different from others.

D. the pill will reduce people's sufferings from bad memories.

5.You may probably read the passage in             .

A. a guidebook              

B. a textbook

C. a medical magazine      

D. a science fiction

电容器组过电流保护灵敏度不能满足要求时，应装设（）保护。

A.差电压或差电流

B.低电压

C.过负荷

D.过电压