根据句意及首字母提示补全单词。

1. You've got a cold. Take the m_____ three times a day and you will feel better.

2. A hot bath will make you feel r_____ after a hard day's work.

3. The teacher is organizing a d_____ about how to use pocket money.

4. To p_____ children from getting ill, parents should encourage them to do more exercise.

5. Too much work and too little rest often lead to i_____.

6. —Tim, come out to play with us. 

    —Wait a minute! N_____ finished.

细胞内侧负电位值由静息电位水平加大的过程称为

A．去极化

B．超极化

C．复极化

D．超射