My name is Nick.. I have four new good friends. They are Dick, Helen, Jack and Amy.

Now, they’re in the garden. Dick and Jack are boys. Dick is tall and strong. Jack is tall but he’s not strong. He is thin. Helen and Amy are girls. They’re twins. They are short and slim. Dick is thirteen. Helen is thirteen too. They’re in the same class. Jack is in Class4. His shoes are black and his T-shirt is white.

小题1:Where are Dick and Helen now?

A．In the library.

B．At home.

C．In the classroom.

D．In the garden.小题2:Who is tall and thin?

A．Helen

B．Dick

C．Jack

D．Nick小题3:What is Amy like?

A．Short and slim

B．tall and slim

C．fat and short

D．fat and strong小题4:What colour is Jack’s T-shirt?

A．Black

B．Red

C．White

D．Brown小题5:Who are thirteen years old?

A．Dick and Helen

B．Dick and Jack

C．Simon, Helen and Jack

D．Jack and Amy

检验检疫机构把生产企业分为三类，对于二类企业采取抽查检验，则批次抽检率可以为( )。

A．15%

B．30%

C．45%

D．100%