根据首字母或汉语提示，用正确的词完成句子。

1. I think Zhang Hua is a ________(勇敢的) young man.

2. Would you help me _________ (解决) this problem?

3. We should know how to cook __________ (有益健康的)and tasty meals.

4. When the bus stopped, we all got off _________(迅速地).

5. Betty is a beautiful girl. She w__________ small round glasses.

6. We are happy to join in after-school a___________ every week.

7. This skirt is e_________ more expensive than that one.

8. The story is very b___________ and I don't want to read it.

水环式真空泵的叶轮每转（），两叶片间的容积改变一次。

（A）1/4周

（B）1/2周

（C）1周

（D）2周