细胞因子受体分为（） A.免疫球蛋白基因超家族 B.Ⅰ型细胞因子受体家族 C.Ⅱ型细

阅读理解。

    Once upon a time, there lived a rich man. He had a servant (仆人). He and the servant loved wine (酒)

and good food very much. Each time the rich man left his home, the servant would drink the wine and

eat up all the nice food in the house. The rich man knew what his servant did, but he had never caught

his servant doing that.

    One morning, when he left home, he said to the servant, "Here are two bottles of poison (毒药) and

some nice food in the house. You must take care of them." With these words, he went out.

    But the servant knew what the rich man had said was untrue (假的), after the rich man was away

from his home, he enjoyed a nice meal. Because he drank too much, he was drunk and fell to the ground.

When the rich man came back, he couldn't find his food and his wine. He became very angry. He woke

(叫醒) the servant up. But the servant told his story very well. He said a cat had eaten up everything. He

was afraid to be punished (被惩罚), so he drank the poison to kill himself.

1. In the story, _____ liked wine and good food very much. [ ]

A. the rich man

B. the servant

C. both A and B

D. neither A and B

2. The rich man knew that it was _____ that drank the wine and ate up all the nice food.[ ]

A. the cat

B. himself

C. nobody

D. the servant

3. The rich man told the servant that there was poison in the two bottles, because _____. [ ]

A. there was in fact poison in the bottles

B. he did not want the servant to drink his wine

C. he wanted to kill the cat

D. he wanted to kill the servant

4. In fact _____ ate all the nice food and drank the wine.[ ]

A. the servant

B. cat

C. the rich man

D. nobody

5. From the story, we know that the servant is very _____. [ ]

A. lazy

B. bad

C. clever

D. kind

一项对控制吸烟的干预研究中，对观看录像的参与人数的评估是属于（）

A.形成评价

B.过程评价

C.近期效果评价

D.远期效果评价

E.总结评价

在原子吸收分析中，当溶液的提升速度较低时，一般在溶液中混入表面张力小、密度小的有机溶剂，其目的是（）

A、使火焰容易燃烧

B、提高雾化效率

C、增加溶液粘度

D、增加溶液提升量

在下列各种编码中，每个字节最高均是“1”的是( )。

A．外码
B．ASCⅡ码
C．汉字机内码
D．汉字国际码

单机操作系统可以定义为有这样一个系统软件，它管理着一台计算机的主要操作，分S，j是 Ⅰ．进程 Ⅱ．内存分配 Ⅲ．文件输入输出(I/O) Ⅳ．设备输入输出(I/O)Ⅴ．存储管理 Ⅵ．处理机调度 Ⅶ．安全管理

A．Ⅰ、Ⅱ、Ⅲ、Ⅳ

B．Ⅱ、Ⅲ、Ⅳ、Ⅴ

C．Ⅲ、Ⅳ、Ⅴ、Ⅵ

D．Ⅳ、Ⅴ、Ⅵ、Ⅶ