用正确的单词填空。

1. The trees can stop the flood from ______ (wash) the earth away.

2. You'd better ______ (not go) to the supermarket.

3. You must practise ______ (play) the piano every day.

4. He hasn't enough ______ (经验) for the job.

5. He likes to take n            in class.

患者，女，33岁，已婚。孕3堕3。头晕目眩，神疲乏力，心悸气短，舌质淡，苔薄白，脉细弱。治疗应首选（）

A.泰山磐石散

B.寿胎丸

C.肾气丸

D.安奠二天汤

E.补肾固冲丸