根据句意及汉语或首字母提示,填写恰当的单词。

1. It's my_____ (责任) to take good care of my parents when they are old.

2. We all _____ (将……视为) Yao Ming as the greatest basketball player from China.

3. I don't think your son has _____  (认识到) how important English is to him.

4. Please read the text a _____  , so all of us can hear you.

5. This is a new word. Can you tell me how to p _____  it?

呼吸性酸中毒最先应解决的问题（）

A.肺部感染，使用大量抗生素

B.进行人工呼吸

C.应用呼吸中枢兴奋剂

D.解除呼吸道梗阻，改善肺通气

E.给予碱性液体