1. Keeping calm is the most important thing you should remember in time of e__________.

2. Tom d________ to be praised by the boss as he has worked so hard that nobody can imagine.

3. The news of Gaddafi's death was b_______ over the radio throughout the world immediately.

4. Ann was very annoyed at his rude b__________ at her birthday party.

5. I don't understand what you are saying. Would you please give me an __________(解释)?

6. After a few days of fever, she began to ________ (恢复) from it.

7. People often work out outdoors on the weekend and do something ________(挑战性的).

8. George likes living in Australia, where he had an _______ (令人愉快的) time several years ago.

9. She g_______ from Luhe No. 1 Middle School last July and then went to America for further study.

10. I felt ________ (尴尬的) about what a mess my house was.

当事人对首次医疗事故技术鉴定结论不服的，自收到首次鉴定结论之日起，提出再次鉴定申请的期限是（）

A.15天后

B.7天内

C.30天后

D.15天内

E.45天