根据句意及首字母提示补全单词。

1. I used to like playing the piano, but now I prefer playing the v_____.

2. The m_____ of the rock band are all boys.

3. This English story is very s_____. I think it's easy for us to read.

4. I like pop music. It is always about love and e_____ life.

5. —Could you l_____ me your bike, please?

    —Sure, here you are.

梗死的病因中，最重要的是（）

A.动脉硬化

B.高血压

C.动脉壁炎症

D.真性红细胞增多症

E.血高凝状态