题目内容

枸橼酸钠作为抗凝剂用于输血的主要优点是( )

A. 普及易得
B. 毒性小
C. 用量少
D. 价格低
E. 不溶血

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Mr. Smith works in a machine factory. There he drives a truck (卡车). He’s busy all the time and can’t do any housework (家务). His wife is a doctor and likes to keep all the things tidy (整洁的,使整齐) and clean. She usually goes to work from Monday to Fri- day and has to do all the housework on Saturdays. All her friends know about it and sometimes they come to help her. Last Saturday Mr. Smith had something to do and he left a lot of dirty clothes at home. Mrs. Smith didn’t go to work, but she was a little ill. So she didn’t want to do anything. After breakfast, Mary, one of her friends, came (来,出现) to see her when she was sitting on a chair. The girl found (发现,找到;创办) rooms were dirty and asked, "Don’t you clean your room today, Mrs. Smith" "No, I don’t." Said the doctor. "Why don’t you wear glasses" "This way I’ll think the rooms are tidy and clean]\ Mr. Smith is a______.

A. truck driver
B. worker in a hospital
C. head of a factory

What’s the matter with Tom

A. He is very cold.
B. He is ill.
C. He is lazy (懒惰的).

积液LD与血清LD的比值大于多少时,符合渗出液的特点( )

A. 0.1
B. 0.2
C. 0.3
D. 0.4
E. 0.5

What special day is it today

A. It’s Christmas (圣诞节) Day.
B. It’s New Year’s Day.
C. It’s Ted’s birthday.

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