阅读理解：

    Dear Mr. Wang, Someone comes to the office to see you in the morning, but you and your wife are out. He comes here at 10am. Because he is very busy, he goes away half an hour later. He tells me that he is    your classmate at college(大学). Now he teaches Chinese in a high school(高中) in this city and he lives   near the No. 6 Middle School. He is a very tall man with short hair. He wears a pair of glasses. He tells me his telephone number is 33426685. He is often at home at 7:00 pm. So you can call him in the evening.

1. The author(作者) writes this note(便条) to _____.

A. Mr. Wang      

B. Mr. Wang’s wife    

C. Mr. Wang’s classmate  

D. me

2. Mr. Wang’s classmate is _____.

A. a teacher  

B. a worker

C. a farmer  

D. an actor

3. When is Mr. Wang’s classmate often at home?

A. In the morning  

B. In the afternoon.

C. At 7:00pm.  

D. We don’t know.

4. How long does Mr. Wang’s classmate stay in the office?

A. Ten hours.      

B. An hour.          

C. Two hours.    

D. Half an hour.

5. Which of the following is TRUE?

A. Mr. Wang and his wife are classmates.  

B. Mr. Wang’s classmate is short.

C. Mr. Wang goes out with Mrs. Wang in the morning.

D. Mr. Wang’s classmate meets Mr. Wang in the morning.

微型计算机系统中的中央处理器主要由( )构成。

A．内存储器和控制器

B．内存储器和运算器

C．控制器和运算器

D．内存储器、控制器和运算器