用括号内所给单词的适当形式填空。

1. We should often exercise to stay _____ (health).

2. Sam says, "Mary is _____ (heavy) than me".

3. I can't go to school, I have to rest today, because I have a _____ (head).

4. We go to the movies _____ (one) a month.

5. Chinese medicine is now popular in many _____  (west) countries.

下述临床表现哪项诊断肋骨骨折最可靠（）。

A.局部疼痛

B.损伤部位肿胀

C.损伤部位间接压痛

D.听到胸部有骨擦音