跟据句意及首字母提示补全单词。

1. His home is on the twelfth floor. We'd better take an e____ up there.

2. John is very friendly and easy to get a____ .

3. How much did the coat c____?

4. I have a hard time f____ your house.

5. Be c____ when you cross the busy street.

关于急性风湿热合并充血性心力衰竭的治疗，以下哪项处理不正确（）

A.大剂量糖皮质激素

B.给予足量洋地黄制剂

C.维持电解质平衡

D.吸氧、低盐饮食

E.利尿剂