问题 单项选择题 A1型题

氩激光小梁成形术不适用于治疗()。

A.原发性开角型青光眼

B.闭角型青光眼

C.晶状体囊膜剥脱性青光眼

D.色素性青光眼

E.继发性开角型青光眼

答案

参考答案:B

解析:氩激光小梁成形术是治疗开角型青光眼的一种方法,其原理:激光治疗可使小梁网的内层纤维收缩,网眼开放,房水流出增多,同时刺激小梁网细胞的分裂和移行,促进房水排出。而闭角型青光眼是房角关闭所致,小梁成形术不能解决问题。

阅读理解

阅读理解。

     Many people have, to work on the weekend. Some people do not mind. Other people think it is terrible.

One man thinks that working on the weekend can be dangerous. He is John Brown. Mr. Brown works in

an office in New York.

     On Saturday, May 24, 1986, he went to the office to do some work. When he got in the elevator to go

home, it stopped between floors. Mr. Brown could not get out of the elevator. He was trapped (困住)! He

started to shout, but nobody heard him. Then Mr. Brown remembered that it was a holiday in America.

Nobody was going to come to work until Tuesday! There was nothing for Mr. Brown to do.

     He had to wait until one of his coworkers (同事) came to work and found him. With nothing to eat

or-drink, Mr. Brown ended up sleeping for most of the time.

     Early on Tuesday morning, the president of the company came into work and found the elevator was

not working. When the elevator was opened, Mr. Brown came out cold, weak, and tired. He had been in

the elevator for sixty-two hours!

     Now Mr. Brown says, "I only use elevators if they have telephones in them."

1. What does Mr. Brown think of working on the weekend?

A. It is happy.

B. He doesn't mind.

C. It can be dangerous.

D. He refuses to do it.

2. How long was he in the elevator?

A. From Saturday to Monday.

B. From Tuesday to Saturday.

C. More than three days.

D. More than two days.

3. Why did Mr. Brown spend so long in the elevator? Which of the following is NOT a reason?

A. It was a three-day holiday.

B. He had no food or drink.

C. The elevator stopped between two floors.

D. There was no telephone in the elevator.

4. How was Mr. Brown able to get out of the elevator?

A. The president discovered the elevator wasn't working.

B. The elevator started to work soon again.

C. His coworker who worked on the weekend helped him out.

D. His coworkers found him when they came back to work on Monday.

5. What is the best title (题目) for this story?

A. A Busy Weekend

B. An Interesting Elevator

C. Trapped in an Elevator

D. Elevator Safety

多项选择题