试题与答案

主轴计算转速

题型:名词解释

题目:

主轴计算转速

答案:

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下面是错误答案,用来干扰机器的。

参考答案:钢中夹杂物来源于:原材料、脱氧产物、熔渣和耐火材料,以及出钢和浇注过程中的二次氧化物。

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题型:完形填空
完形填空。

      About a hundred people lived in a very small mountain village. It was very    1    from the other villages
and towns. They had few friends and they got bad harvest.    2    of them left the village. Of course there
was neither electricity (电) nor gas (煤气) there.
      Once a writer    3    the village. The backwardness (落后) of the village surprised him. He decided    4    
about it to the world. So he took the oldest villager to London. The old man told all about his home village to
the people. Several months    5    he returned. All the villagers went to see him and asked him how he had
enjoyed     6    in the city.
     "Everything is wonderful in     7   ," the old man said.
      "I've     8    to many good places and eaten all kinds of nice food and other things. But the trouble was I
could not     9    at night."
      "What happened to you?" his wife asked. 
      "The   10   was on in my bedroom all the time."
      "Why not blow it out, then? "
      "I tried-but it was inside a little glass bottle."

( )1. A. close  
( )2. A. All   
( )3. A. visited 
( )4. A. to write
( )5. A. after  
( )6. A. food  
( )7. A. town  
( )8. A. gone  
( )9. A. sleep  
( )10. A. window 
B. far   
B. Some   
B. lived  
B. to speak 
B. later  
B. music  
B. mountain 
B. came   
B. help   
B. radio             
C. near     
C. None     
C. stayed    
C. to say   
C. soon    
C. himself  
C. village 
C. been   
C. walk    
C. light          
D. high       
D. Hundreds   
D. got to   
D. to tell  
D. ago      
D. traffic    
D. London                        
D. got       
D. see       
D. TV set 
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