根据句意及首字母补全单词。

1. You should throw it s _____ .

2. Let's t _____ to play this game.

3. At  f _____, we must find Liu Mei.

4. I hope you can do one m _____ time.

5. Do you u _____ the word?

6. I borrowed d _____ to look up the word.

7. Let's s _____ the word together.

8. I'll do it better if I k _____ trying.

提示左心衰竭，最有诊断意义的体征是（）

A.左心扩大

B.心尖区听到舒张期奔马律

C.颈静脉怒张

D.心脏杂音

E.肺部闻及湿啰音