用所给单词的适当形式填空。   

1. Where_______ (be) your parents from?    

2. China and the USA are both big _______ (country).

3. _______ (Japanese) is in Asia (亚洲).

4. P1ease tell us about _______ (you).

5. _______ he _______ (speak) English every day?

下列哪项符合心房颤动的临床表现（）

A.心率快，规整

B.心率慢，不规整

C.心率快，节律完全不整

D.心率慢，规整

E.心率慢，节律完全不整