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问题 单项选择题

柴油机每运转（），应拆下机油细滤器转子浸在柴油中用毛刷刷去污垢，两个喷嘴如无必要清洗时，不要随意拆卸。

A、50h

B、100h

C、150h

D、200h

答案

参考答案：D

选择题

我国园林艺术的典型代表是[ ]

A．乔家大院      

B．苏州园林    

C．湖北神农架    

D．承德避暑山庄
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单项选择题

George is a young man. He does not have a wife, but he has a very big dog and he has a very small car, too. He likes playing tennis. Last Monday he played tennis for an hour at his club, and then he ran out and jumped into a car. His dog came after him, but it did not jump into the same car. It jumped into the next one.
"Come here, silly dog!" George shouted at it but the dog stayed in the other car.
George put his key into the lock of the car, but the key did not turn. Then he looked at the car again. It was not his! He was in the wrong car! And the dog was in the right one! "He’s sitting and laughing at me!" George said angrily. But then he smiled and got into his car with the dog.

George was in a wrong car with his dog.

A. Right.


B. Wrong.

C. Doesn’t say.
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