问题 多项选择题

腰椎间盘突出症的治疗中,骨盆牵引的作用

A.增加椎间盘外压力

B.降低椎间盘内压力

C.扩大椎间孔和神经根管

D.减轻突出物对神经根的压迫

E.调节后关节紊乱

答案

参考答案:B,C,D

阅读理解

阅读理解。

     The building is shaking. A woman with a baby in her arms is trying to open the door, but fails. Finding

no way, she rushes into her bedroom and there they survive the earthquake. 

     In a factory building, as the workshop floor swings under the terrible shaking, workers run for safety.

Some hide (隐藏) under the machines and survive, but others who try to run outside are killed by the falling

ceilings.

     These scenes, played by actors and actresses, are from a film of science education 《Making a

Split Second Decision》 shown in 1998 on China Central TV in memory of Tangshan Earthquake. By

studying actual cases in the earthquake areas and scientific experiments, experts (专家) find that buildings

remain untouched for the first 12 seconds of an earthquake.

     In this short time, one has the best chance of surviving an earthquake by staying near the inside walls, in

bedrooms and under beds, experts concluded in the film. "Earthquakes seem to catch the lives of those who

run," said many survivors in the earthquake areas, describing how their friends were killed on the doorways

or along the stair steps as they tried to get out of the building.

     Their advice was proved in the film, "Take a hiding-place where you are rather than run, unless you are

sure you can reach a safe open place in ten seconds."

1. The word "survive" appears in the passage several times. It probably means ________ in Chinese.

A. 遇难

B. 幸存

C. 恐惧

D. 摇晃 

2. The workers who tried to run outside the building died because ________.

A. the factory building was shaking terribly

B. they were making a film

C. they didn't have enough time to run outside

D. they were too nervous

3. The passage suggests that you should ________ when an earthquake happens.

A. cry for help

B. not move and lie on the floor at once

C. run down the steps as fast as you can

D. find a safe place and hide in at once or run out in ten seconds

4. Where can we probably find this passage?

A. In a magazine.

B. In an advertisement.

C. In a history book.

D. In a poster.

单项选择题