阅读短文，判断正 (T) 误 (F)。

      My name is Helen. I'm thirteen. I'm in No. 5 Middle School. I'm in Class 4, Grade 1. HanMei

and LiuYing are my good friends. They are in Row (排) 3, but I'm in Row 6. Today HanMei isn't

here. I think she is at home.        

      Mrs White is our teacher. Her name is Jean White. She is an English teacher. She is very nice.

She looks very young, but I don't know how old she is.

( )1. Helen is twelve.

(     )2. HanMei is in Class 3, Grade 1.

(     )3. Today I'm at home.

(     )4. Mrs White.is our English teacher.

(     )5. Mrs White is an American (美国的) woman.

工业安装划分的程序是( )。

A．分部工程→分项工程→单位工程

B．分项工程→分部工程→单位工程

C．单位工程→分项工程→分部工程

D．分项工程→单位工程→分部工程