下列哪个选项不是全国人民代表大会常务委员会在2000年12月颁布实施的《关于维护互联

People should open the window in the morning to make air ________ in order to keep the indoor

air fresh. [      ]

A. spread  

B. remove

C. float  

D. circulate

下列各项中不具细胞结构的是：

A．草

B．蘑菇

C．人

D．病毒

用所给词的适当形式填空。

1. Are you a good _______ (swim), Mr Jing?

2. All the classmates give flowers to Ms Li on _______ (teacher) Day.

3. Do you often practice _______ (play) volleyball?

4. Daniel _______ (fly) a kite in the park every Saturday.

5. Who teaches _______ (they) math this term?

6. The children cut out the eyes, the nose and the sharp _______ (tooth).

7. I am looking forward to _______ (see) you again.

8. We are all _______ (excite) to meet the pop star.

9. Let us _______ (make) a pumpkin lantern together.

10. My best friend _______ (not write) e-mails on Monday.

下列哪项不是麻疹前驱期的表现（）

A.发热

B.上呼吸道卡他症状

C.眼结膜炎表现

D.麻疹黏膜斑

E.皮肤糠麸脱屑

中医学认为，决定临床病证虚实变化的是：（）

A.气血津液的盛衰变化

B.气机升降出入的失常

C.正气与邪气的盛衰变化

D.阴精与阳气的偏盛偏衰

E.脏腑功能活动的盛衰变化