问题 单项选择题 A1/A2型题

对于正在发病的间日疟患者进行根治,应选()

A.氯喹

B.伯氨喹

C.氯喹+乙胺嘧啶

D.氯喹+伯氨喹

E.乙胺嘧啶+伯氨喹

答案

参考答案:D

解析:因氯喹对间日疟原虫红细胞内期的裂殖体有杀灭作用,故可有效地控制间日疟的症状发作,也可收到症状抑制性预防的效果。然而,氯喹对疟原虫红细胞外期无作用,故不能根治间日疟。伯氨喹对间日疟红细胞外期(或休眠期)有较强的杀灭作用,可根治之。故两药合用,既可有效地控制间日疟的临床症状,又可根治之。

阅读理解

阅读理解。

     Pulling heavy suitcases all day in the summer is hard work, especially when you're a thin 14-year-old.

That was me in 1940-the youngest and smallest baggage boy at New York City's Pennsyl-vania Railway

Station.

     After just a few days on the job, I began noticing that the other fellows were overcharging pas-sengers.

I'd like to join them, thinking,"Everyone else is doing it."

     When I got home that night, I told my dad what I wanted to do."You give an honest day's work," he

said, looking at me straight in the eye."They're paying you. If they want to do that, you let them do that."

     I followed my dad's advice for the rest of that summer and have lived by his words ever since.

     Of all the jobs I've had, it was my experience at Pennsylvania Railway Station that has stuck with me.

Now I teach my players to have respect for other people and their possessions. Being a member of a team

is a totally shared experience. If one person steals, it destroys trust and hurts everyone. I can put up with

many things, but not with people who steal. If one of my players were caught stealing, he'd be gone.

     Whether you're on a sports team, in an office or a member of a family, if you can't trust one another,

there's going to be trouble.

1. What can be inferred about the baggage boys?

A. They could earn much, but they had to work hard.

B. Many of them earned money in a dishonest way.

C. They were all from poor families.

D. They were all thin, young boys.

2. What does the father's advice imply?

A. It is wrong to give more pay to the passengers.

B. Don't believe them if they are paying you more.

C. Don't follow others to overcharge the passengers.

D. It is difficult to work hard and live as an honest boy.

3. The writer can't put up with stealing because he thinks that ______.

A. it is a totally shared experience

B. it is considered as the most dangerous

C. it does great harm to human relationship

D. it may lead to the loss of his sports team

4. It can be concluded from the text that ______.

A. his father's advice helped him to decide which job to take up

B. working in the sports team was his most important experience

C. he learnt much from his shared experience with his team members

D. his experience as a baggage boy had a great influence on his later life

单项选择题