问题 单项选择题

蛛网膜下腔出血最常见的病因是

A.脑外伤
B.出血性疾病
C.抗凝治疗
D.脑血管畸形
E.腰椎穿刺损伤

答案

参考答案:D

解析:蛛网膜下腔出血的病因以先天性脑动脉瘤、脑血管畸形和脑动脉硬化为多见。少见病因有脑肿瘤、脑动脉炎、血液病、抗凝治疗后等。

单项选择题
阅读理解

阅读理解

     A man was on the side of the road hitchhiking(搭便车)on a very dark night in the middle of a

terrible rainstorm, with no cars on the road. The storm was so strong that the man could hardly see a

few feet ahead of him. Suddenly, he saw a car come towards him and stop. The man, without thinking

about it, got in the car and closed the door and only then did he realize that there was nobody behind the

steering wheel(方向盘)!

     The car started to move very slowly. The man looked at the road and saw a curve (拐弯处)

coming his way. Terrified, he started to pray, begging for his life. He had not come out of shock when,

just before the car hit the curve, a hand suddenly appeared through the window and moved the wheel.

The man, paralyzed with fear, watched how the hand appeared every time the car was drawing near a

curve. Finally, although terrified, the man managed to open the door and jump out of the spooky car.

Without looking back, the man ran through the storm all the way to the nearest town. In a state of

complete horror, the man walked into a nearby bar and asked for two glasses of Scotch whisky.

     Then, still shaking with fright, he started telling everybody in the bar about the horrible experience he

just went through in the spooky car. Everyone in the bar listened in silence and became frightened, with

hair standing on end, when they realized the man was telling the truth because he was crying and he was

certainly not drunk!

     About half an hour later, two other young men walked into the same bar and one said to the other,

"Hey, there's a stupid man who jumped into the car while we were pushing it!"

1. When the car was first drawing near a curve, the man ________.    

A. felt very curious            

B. was extremely frightened

C. cried for help            

D. remained as calm as possible

2. According to the passage, what made the man's experience believable?

A. His reasonable behavior.        

B. His vivid description. 

C. His plain appearance.          

D. His honest attitude.

3. We can infer from the passage that ________. 

A. it is unsafe for people to take a free ride

B. the man was telling a lie to his listeners

C. the car probably broke down on the way

D. the two young men were familiar with the man