护理瘫痪患者不妥的是（）。

A.鼓励咳嗽、排痰

B.预防压疮和肺炎

C.预防泌 * * 感染

D.避免瘫痪肢体活动

E.鼓励多饮水

I was worried about my maths, but Mr. Brown gave me an A.（）

A.Don't worry about it.

B.Congratulations! That's a difficult course.

C.Mr. Brown is very good.

D.Good luck to you！