单词拼写。

1. Water was pouring into the sink and vanishing down the d_______.

2. Don't be so i_______! The bus will be here soon.

3. When I get home from work, I like to r_______ with a glass of wine.

4. The heart p_______ blood round the body.

5. She talks about nothing except her p_______ car.

在液压系统工作时，下列哪些原因最可能使压力表摆动过大？（）

A、压力表波纹管破裂

B、储压器充气，压力不足

C、供油不足

D、系统安全活门卡在关闭位