问题 单项选择题

关于麻醉前用药的目的,下列哪项是错误的()

A.提高痛阈,增强止痛效果

B.消除紧张情绪

C.减少呼吸道分泌物

D.抑制迷走神经反射

E.加强肌肉松弛作用

答案

参考答案:E

单项选择题
阅读理解

第三部份: 阅读理解(共20小题,每小题2分,满分40分)

A

Some people think that they will get ill if they use their brains (大脑) too much.. It is not true. Through many studies, scientists show us that the more you use your brains, the better it will be, and the cleverer you will become.

Of course, if you want to keep your mind clear and active, you must take a proper rest and study properly. To the teenagers, using their brains in the morning is good for their health.

There are many ways to rest. One is a peaceful rest. Sleep is a peaceful rest. Another is an active rest. For example, take a walk outdoors, do more exercises every day. To change the way of the brains’ activities is also a good way to rest.

In everyday life, to eat some eggs, meat, fresh vegetables and fruit(水果)is also good for the brains.

Wish you a wise man and a happy life.

56. According to the writer of the passage, our brains should be used _________.

A. hardly           B. seldom          C. more often               D. at times

57. Which is true?

A. Illness comes from the fact the brains are used too much.

B. Fruits are the most important for the brains.

C. The brains will be better if they are used often.

D. Sleep is the only way of having a rest.

58. Which of the following can be used as the best title for the passage?

A. How to use your brains                     B. How to rest

C. How to become a wise man                 D. Keep your mind clear