问题
单项选择题
密封胶使用时应均匀，应( )。
A．无间断地涂抹在两密封面上
B．等距间断地涂抹在两密封面上
C．无间断地涂抹在一个密封面上
D．等距间断地涂抹在一个密封面上
答案
参考答案：A
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密封胶使用时应均匀，应( )。
A．无间断地涂抹在两密封面上
B．等距间断地涂抹在两密封面上
C．无间断地涂抹在一个密封面上
D．等距间断地涂抹在一个密封面上
参考答案：A
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| Most people were asleep at night, but Frank was 1 . Frank was a night watchman. His work was to guard (保卫) a large factory. He had to keep everything 2 . He felt lonely (寂寞) because there was 3 there to talk with. Frank liked his work. If he heard a noise, he went 4 to see what it was. Most of time h  e walked around inside the big building but he also walked around outside 5 . When he was 6 , he could sit on a chair by the door. In the winter it was very cold. He 7 a warm coat when he left the factory. Last night when Frank went outside, he heard a noise near the gate of the factory. He went very quietly to the noise to see 8 somebody was there, but he saw only a small dog. It looked cold and sad. He took the dog inside the factory and the happy dog 9 him around. The dog was a good friend for the night watchman. Frank was no longer 10 . He could talk to the dog. | ||||
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