阅读理解。

     There are four people in Jim's family. They are Kate, Jim, their father and mother. Jim is Kate's brother.

He is fourteen. Kate is Jim's sister. She is twelve. They are in the same middle school. Jim is in Class One,

Grade Three. Kate is in Class Two, Grade One.

     They are good students.

     Their father Mr Green is a teacher. He is thirty-nine. He teaches English in a school near his home. Their

mother is a teacher, too. But she teaches Chinese in a different school.

     Now they are all at home.

1. How many people are there in Jim's family?

A. 3

B. 4

C. 5

D. 2

2. Mrs Green is _____.

A. an English teacher

B. a Chinese teacher.

C. a Japanese teacher

D. a maths teacher

3. Jim and Kate are in _____ middle school.

A. the same

B. different

C. No. 2

D. same

4. Mr Green and Mrs Green work _____.

A. in different school

B. in the same school

C. in a factory

D. in different schools

5. Now Jim is _____.

A. at school

B. at home

C. on the bed

D. in the classroom

根据JJG539-1997检定规程的要求，（）与首次检定项目一致，但可根据使用实际，不检定至最大秤量，至少检至2/3最大秤量，重复性可在约50%最大秤量处实施。

A.定型鉴定

B.随后检定

C.样机试验

D.首次调试