问题 单项选择题

下面关于内部网络地址规划的说法中,错误的是______。

A) 内部网络地址规划一定要简洁,文档记录清晰,使使用者很容易理解
B) 网络地址规划一定要考虑具有良好的可扩展性
C) 采用分级地址结构,减少路由器的路由表规模,可提高路由与分组转发速度
D) 规划内部网络地址系统的基本原则是:简捷、便于系统的扩展与管理、先进的管理制度

答案

参考答案:D

解析: 规划内部网络地址系统的基本原则如下。①简捷:内部网络地址规划一定要简洁,文档记录清晰,使使用者很容易理解;②便于系统的扩展与管理:网络地址规划一定要考虑具有良好的可扩展性,管理方便;③有效的路由:采用分级地址结构,减少路由器的路由表规模,可提高路由与分组转发速度。

完形填空
完形填空。
     The generation gap(代沟) has become a serious problem. I read a   l      about  it  in  the  newspaper.
Some children have killed themselves after   2       with parents. I think this is because they  seldom(极少地)  have a talk with each other.  Parents now   3     more time in the office,    4      they don't have much
time to stay with their children.  As time passes, they both feel that they don't h ave the   5     topic to talk
about. I want to tell parents to spend more time  with  your     6       , get to know them and .    7     them.
And for children, show your     8   to your parents. They  are  the people who love you. So   9         them
your thoughts. In this way, you       10   understand each other better.
( )1. A. message    
( )2. A. talking    
( )3. A. spend      
( )4. A. because    
( )5. A. interesting
( )6. A. business    
( )7. A. like        
( )8. A. interest    
( )9. A. tell        
( )10.A. can        
B. call      
B. arguing    
B. stay      
B. if        
B. same      
B. children  
B. look after
B. secret    
B. ask        
B. should    
C. report      
C. fighting    
C. work        
C. but          
C. true        
C. work        
C. understand  
C. trouble      
C. answer      
C. must        
D. letter    
D. playing    
D. have      
D. so        
D. good      
D. office    
D. love      
D. feelings  
D. say        
D. will      
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