阅读理解。

     My name is ZhanTao. I'm a student. I'm thirteen. My father is a teacher. He teaches math. My mother is

a teacher too. She is an English teacher. We are Chinese. But now we are in England. This is a photo of my

friends. His name is Tom. He is an English boy. He is my best friend.  The girl is Anise. She is an American girl.We are all good friends.

1. What's the boy's name?

A. Anny.

B. Jenny.

C. Zhan Tao.

2. How old is the boy?

A. Twenty.

B. I don't know.

C. He is thirteen.

3. What's his father's job?

A. A worker.

B. A doctor.

C. A teacher.

4. Is his mother an English teacher?

A. Yes, she is.

B. No, she doesn't.

C. Yes, she does.

5. Is the boy Chinese or English?

A. Chinese.

B. English.

C. I don't know.

引起Ⅱ型呼吸衰竭最重要的机制是（）

A.弥散功能障碍

B.通气量下降

C.氧耗量增加

D.通气／血流比例失衡

E.分流