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问题 选择题

若点A（-x，-y）在第二象限，则点B（x，y）在（　　）

A．第一象限

B．第二象限

C．第三象限

D．第四象限

答案

∵点A（-x，-y）在第二象限，

∴-x＜0，-y＞0，

∴x＞0，y＜0，

∴点B（x，y）在第四象限．

故选D．

阅读理解

阅读理解。

     Yao Ming is a very good basketball player in the world. He was born in 1980 and he was born in Shanghai,

but he lives in the USA with his parents now. Yao Ming is quite tall. But he isn't so strong. He was in the

Rockets Team after he left (离开) China. He plays very well in the NBA. Many people come to his matches

(比赛) in America. Lots of Chinese young men watch the matches on TV. Yao Ming wants to be a superstar

one day.

1. Where is Yao Ming from?

A. The USA

B. Shanghai

C. Beijing

D. Japan

2. What does Yao Ming look like?

A. Short.

B. Slim.

C. Tall.

D. Thin.

3. Who likes to watch his matches?

A. Chinese people.

B. American people.

C. Japanese people.

D. Chinese and American people.

4. What does Yao Ming want to be one day?

A. A football star.

B. A doctor.

C. A worker.

D. A basketball star.

5. How old is Yao Ming now?

A. 26

B. 28

C. 27

D. 30

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单项选择题

驱动形成为4³4的汽车传动系有（），而驱动形成为4³2的汽车传动系没有该部件。

A、离合器

B、变速器

C、分动器

D、同步器
查看答案