句型转换。

1. I have short hair. (改为一般疑问句)

    _______ _______ _______ short hair?

2. He has small mouth.(改为复数句)

    _______ _______ small _______.

3. She is in Class 5. (改为否定句)

    She _______ in _______ 5.

4. Maria is in my class. (对划线部分提问)

    _______  _______ Maria?

5. She has a happy family. (改为一般疑问句)

    _______ _______ _______ a happy family?

二级大气评价项目，可选用( )进行大气环境预测。

A．正态模式

B．平流扩散模式

C．面源箱式模式

D．随机游动等数值模式