单词拼写。

1. Two guards are standing there to look after the _________ (安全) of those personal possessions.

2. You have to make sure about the _________ (分配；分发) of these goods to each house.

3. This project is _________ (运作) very well-more and more children are getting what they need.

4. We're concerned about the fate of the _________ (代替) teachers.

5. Don't worry. It's just a r_________ (例行的) medical examination.

下列疾病中，哪些好发于冬春季（）

A.水痘

B.乙型肝炎

C.流行性乙型脑炎

D.流行性斑疹伤寒

E.地方性斑疹伤寒