热泵型分体空调机，当室内机出现气流短路时，将造成（）。A．夏

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问题单项选择题

热泵型分体空调机，当室内机出现气流短路时，将造成（）。

A．夏季制冷时低压压力升高

B．冬季制热时高压压力变低

C．夏季制冷时低压压力变低

D．高压压力不变

答案

参考答案：C

阅读理解

In a small village (村庄), there is a teacher, a nurse (护士), a driver (司机) and a worker. They are

good friends. What are their names? One is Mike, one is Jack, one is Tom and the other is John. Mike's,

Jack's and Tom's children are classmates. John doesn't have any children. He teaches his friends' children

at school. Mike has many hens. He gives the driver and the nurse eggs. Jack's child goes to the nurse's

house. The nurse's house is beside Jack's.

1. Are the four people good friends?

A. Yes.

B. No.

C. Not.

D. They are brothers.

2. Are they all men?

A. Yes.

B. No.

C. Two are men. Two are women.

D. They are women.

3. What's John?

A. A nurse.

B. A driver.

C. A teacher.

D. A worker.

4. Who has hens?

A. Jack.

B. Tom.

C. Mike.

D. John.

5. Where is the nurse's house?

A. Behind Mike's.

B. Beside Jack's.

C. Beside Mike's.

D. Under Jack's.

单项选择题

下列哪一项是影响投资的最重要因素？（）

A.利率水平

B.货币供求状况

C.一个国家或地区的投资环境

D.投资者个人的资金状况