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网络管理对于网络的正常运行有什么意义？

答案

参考答案：

1、减少停机时间，2、改进响应时间，3、提高设备的利用率4、减少运行费用5、减少网络瓶颈6、提高运行效率

完形填空
完型填空。
     Our dog named Zip always brings things home for us to keep! Many of
them were toy bears, lambs and ducks. We never could     1     the owners.
     One day Dad was     2     the newspaper, "Listen to this, everybody," he
said. "To the person who took a Teddy bear from a child's wagon(推车)
please bring back the toy bear. Our two-year-old son is very     3     ."
     "Zip does something     4     again. He must have taken others' toys." said
Anita.
     "Yes," said Dad, "Well, the paper gives the     5     . This time I can take
back Zip's     6    ."
     "Do you think it is    7     to do that?" Mom asked. "If you tell others about Zip, who will believe you?"
     "I will     8     until dark. Then I'll just put the Teddy bear at the front door and walk away.    9 will see me."
     Dad's idea     10     worked. He put Teddy at the gate. He turned to walk
away and knocked into a chair!
     Dad started to     11     . But he didn't get very far. The gate light came on. A man opened the door."    12     is over here?" he called out.
     Dad kept silent and didn't even try to     13     . He just wanted to get away. Then the man saw     14    .
     He shouted after Dad, "How    15     you are!" he said, "Taking toys from
babies!"
( ) 1.A. pay  
( ) 2.A. buying
( ) 3.A. sad  
( ) 4.A. wrong
( ) 5.A. picture
( ) 6.A. food  
( ) 7.A. wrong
( ) 8.A. speak
( ) 9.A. Someone
( ) 10.A. never
( ) 11.A. speak
( ) 12.A. What
( ) 13.A. help  
( ) 14.A. the bear
( ) 15.A. angry 		B. agree  
B. reading
B. surprised
B. important
B. story  
B. name    
B. clever  
B. wait    
B. Everyone
B. always  
B. drive  
B. Who     
B. answer  
B. Zip     
B. kind    		C. find        
C. writing    
C. happy      
C. interesting
C. address    
C. idea        
C. dangerous  
C. watch      
C. No one      
C. already    
C. run        
C. How         
C. listen      
C. nothing    
C. bad        		D. choose      
D. sending    
D. afraid      
D. worried    
D. time        
D. present    
D. free        
D. think      
D. Anyone      
D. almost      
D. cry        
D. Which      
D. knock      
D. the baby    
D. sorry      


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在诊断脊髓压迫症时除根据临床体征外，常需借助适当的辅助检查。以下检查手段符合无创、能够清晰显示椎管内病变性质和部位等特点的是

A．脊柱MRI

B．腰椎穿刺

C．脊柱CT

D．脊髓碘油造影

E．脊柱X线平片
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