阅读理解。

     Mr Hand and his son, Jack, are in a big shop. Mr Hand wants to buy a new blouse for Mrs Hand. Jack

likes oranges. So his father buys two kilos of oranges for him. Jack also wants to buy some picture-books

and colored pencils. There are many things and many people in the shop. They are men and women, old

and young. They all want to buy something there.

1. Jack goes to the shop with _____. [ ]

A. Mrs. Hand

B. his father

C. his boy

D. other people

2. Mr. Hand is going to buy a new blouse for _____. [ ]

A. Jack

B. Jack's mother

C. his friend

D. other people

3. Jack likes _____. [ ]

A. oranges

B. new blouse

C. his teacher

D. all the things 

4. The little boy wants to buy _____. [ ]

A. some picture- books

B. some colored pencils

C. clothes in the shop

D. A and B

5. People in the shop are _____. [ ]

A. old and young

B. young

C. men and women

D. A and C

定子绕组进水电导率达（）μs／cm时应立即停机。

A、9；

B、5；

C、9.5；

D、9.9。