一般情况下，循环水补水的浊度应小于（），特殊换热器应更小。

Tony is Allen’s classmate. One day, Tony comes to Allen’s home. When he sees many books in Allen’s study, he says to Allen, “Allen, you have so many good books, Can I borrow a book from you?” Allen doesn’t want to lend a book to his classmate and he says, “Why do you want to take my book home? You can read it here in my home.”

Tony sees that his classmate is very selfish(自私), but he say nothing. The next day, Allen comes to Tony’s house and says, “Tony, you have a good garden—knife(修剪刀). I want to work in my garden tomorrow. Can I use it for two days?” Tony answers, “Why do you want to take my garden—knife home? You can work it in my garden.”

小题1:Tony wants to borrow          from Allen.

A．a knife

B．a book

C．a garden—knife

D．money小题2:Tony is Allen’s         .

A．father

B．teacher

C．friend

D．classmate小题3:Tony lends          to Allen.

A．nothing

B．a garden—knife

C．a knife

D．a book小题4:Allen wants to borrow          from Tony.

A．a knife

B．a book

C．a garden—knife

D．money小题5:Who is very selfish?

A．Tony.

B．Allen.

C．Teacher.

D．None.

四大洋中，面积最小且寒冷的大洋是[ ]

A．太平洋

B．大西洋

C．印度洋

D．北冰洋

—Do you know where David is? I couldn’t find him anywhere.

—Well. He _________have gone far—his coat’s still here.

A．shouldn’t

B．mustn’t

C．can’t

D．wouldn’t

下列哪项不是微热的病因

A、气阴两虚

B、情志不舒

C、阳明热盛

D、阴液亏虚

E、血虚

多绳摩擦式提升机按布置方式分为（）和（）两种。