问题 单项选择题

颅腔内容物中脑组织约占80%~90%,脑脊液约占10%,血液约占2%~11%。当颅内出现占位性病变而颅内压尚处于代偿期时。

其主要的代偿机制为( )

A.脑压缩

B.颅内脑脊液量减少

C.脑血流量减少

D.脑移位

E.血压增高以维持脑血流量

答案

参考答案:B

阅读理解

阅读理解。

  I have been a reporter for fifteen years. I chose this job so that I could travel the world, but the job

has taught me many unforgettable lessons. My work is sometimes boring but for most of the time it is

amazing and inspiring.    

  In India, I visited a city. There were many homeless children. Some were young and lived in the

street. But then a lady called Rosa opened a home for them. In one whole year, she was looking after two hundred kids , feeding them , teaching them and giving them hope.    

  Another time, I was in Japan and met a young girl with a serious illness. After seven operations, she

had to have thirteen more in hospital. However, when I met her,she was still smiling.     

  Here in China, after the terrible Wenchuan Earthquake, I found a three-year-old boy named Lang

Zheng. He had been in the ruins(废墟)for more than ten hours before he was found by the soldiers.

Though weak and injured, the brave boy lifted his right hand above his head with difficulty and saluted the

soldiers to show his thanks , which became the most moving moment in the disaster(灾难).

  Thanks to the experience as a reporter, I myself am getting braver and stronger. When I face

challenges in my life, I always remember the courage(勇气) of these three people.

1. The writer chose the job of being a reporter because he wanted to ___________.          

A. improve his working skills          

B. experience difficulties          

C. travel the world

D. offer help to others

2. From the passage, we learn that Rosa was ___________.         

A. kind and patient          

B. creative and proud         

C. lovely and lucky

D. honest and brave

3. What does the underlined word “saluted” in the passage mean in Chinese?

A. 向……告别

B. 向……学习

C. 向……求救

D. 向……致敬

单项选择题