根据句意和首字母提示补全单词。

1. Besides after-class a _____ people like to do a lot of other things in their spare time.

2. Mary's h _____ is collecting stamps.

3. G _____ is my grandpa's favorite. He often plants and waters the plants in his garden.

4. Climbing mountains is very interesting and e _____ .

5. People like relaxing at the s _____ .

P-P间期显著延长，长间歇与正常P-P无倍数关系（）

A.诊断第二度Ⅰ型窦房传导阻滞的是

B.第二度Ⅱ型房室传导阻滞

C.诊断窦性静止的是

D.诊断第二度Ⅱ型窦房传导阻滞的是

E.室性并行心律