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问题 单项选择题

随行电缆安装有应预先自由悬吊，其主要目的是（）。

A、查看长度

B、检验强度

C、查看直径

D、充分退扭

答案

参考答案：D

问答题 简答题

钩体牵引台、冲击台的检修有何要求？
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填空题
阅读短文，根据短文内容，从短文后的五个选项中选出能填入空白处的最佳选项。
选项中有一项为多余选项。
A. But soon they found he couldn't treat them at all B. He thought it was easy to get much money
C. But he wasn't a good driver
D. He was not good at his work
E. After that the man left
     Mr Johnson worked in a restaurant. He worked there for ten years.  1 . And at last he was sent away. He
hated hard work and stayed in the city.
     Once something was wrong with his ear. He had to see a doctor. The doctor looked him over and gave
him some medicine. And five minutes later he had to pay the doctor twenty dollars. 2 . So he came to the
small town and opened a hospital. At first the people there knew nothing about him and they came to see him.  3 . And his medicine wasn't useful. People hardly came and he had nothing to do.
     One evening he heard a knock at the door. He got up quickly and saw a traveler lying in front of his
hospital. He thought he had a bad cold and he asked him to take some medicine.  4 . The following morning he
was told the traveler died in a hotel.
     On the third day a young man came in and said, "Thank you very much, doctor!"
     It surprised Mr Johnson. He said,"I haven't seen you before. What do you thank me for?" "My uncle died
from your wrong treatment the day before yesterday and he left much money to me."
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