著名实业家朱绣山、朱英龙父子先后给宁大捐建了锦绣学生活动中心、绣山工程楼，工学院开放

生物多样性是人类赖以生存的物质基础，对人类生存和发展的价值巨大。[ ]

用所给动词的适当形式填空。

1. How lovely it is! What about              (climb) a hill today?

2. Jim is a top student, and he is good at              (speak) English.

3. I think              (camp) can make us happier than skiing.

4. Mr Wu is very kind. His funny jokes often make us              (laugh).

5. I              (think) of my old friend when I saw her photo.

6. The man is kind enough to help people              (solve) problems.

7. Lin Tao has a pair of              (smile) eyes behind his round glasses.

8. She'll try her best               (not be ) late again.

9. It's polite              (give) your seat to old people.

10. He hopes              (become) a teacher when he grows up.

氯霉素用于（）

A.伤寒、副伤寒

B.斑疹伤寒

C.鼠疫、兔热病

D.军团菌病

E.钩端螺旋体病

糖可分为哪三类？