抽象数据类型是一种用户定义的对象数据类型,它由对象的______及其相应的方法组成。

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问题:

抽象数据类型是一种用户定义的对象数据类型,它由对象的______及其相应的方法组成。

考点:计算机等级考试数据库技术全国计算机等级考试三级数据库技术真题2009年9月
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“我来自元谋,自周口,牵起你毛茸茸的手,爱让我们直立行走。’这是在网络上颇为流行的诗句。下列远古人类,生活在云南省的是(     )

A.半坡人

B.北京人

C.元谋人

D.河姆渡人

题型:填空题

一定时间内的平均工作时间每天不应超过()。

A、8小时

B、12小时

C、16小时

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RF常见的免疫球蛋白类别是 ()

A.IgG

B.IgA

C.IgM

D.IgD

E.IgE

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      On Monday at 2: 35 p.m., a bus full of passengers was going to Bungalow.It was so   1   that you
had to struggle even to get room to stand-   2   about a seat.
     At one stop, an old lady  3  the bus.She looked tired and I thought she was not  4  also.After a few
minutes, her   5   were shaking slightly.She was looking around to find a  6  .She asked a few guys to
let her sit because she had a problem of arthritis (关节炎)in her knees.  7  responded to her positively,
so she was feeling helpless.
      I noticed she was facing a lot of  8  and she was trying to hide it but did not  9  .I was thinking of
giving her my seat, but was fighting in my mind about why I should give her my seat.I  10  it myself:
Because she is old and it's my duty to help her.But I    11   that this is Mumbai (孟买), where to help
anybody may be dangerous.I was hesitating (犹豫)about it.
     Before I asked the lady to take my seat, an old man stood and   12   her his seat.The man, who
traveled his rest journey standing, had only one leg.
      I found myself in an ocean of    13    and guilt-why didn't I help her?My journey ended but I still
regretted that I wasted my time in thinking when it was the right thing to do.
      Now I   14   travel by bus and have decided to never waste time in thinking to help anybody
whatever it results in.I will help although it is  15  to actually do.
( )1. A. broken      
( )2. A. forget  
( )3. A. got off  
( )4. A. clever  
( )5. A. hands            
( )6. A. stick            
( )7. A. Nobody            
( )8. A. damage            
( )9. A. lie              
( )10. A. answered        
( )11. A. introduced      
( )12. A. passed          
( )13. A. hope            
( )14. A. even            
( )15. A. more beneficial  
B. crowded        
B. talk            
B. broke into      
B. pretty          
B. legs            
B. ticket          
B. Somebody        
B. pressure        
B. agree          
B. asked          
B. noticed        
B. offered        
B. fear            
B. still          
B. more dangerous  
C. small
C. worry  
C. came on  
C. selfish
C. ears        
C. support      
C. All          
C. pain        
C. admit        
C. refused      
C. feared      
C. showed      
C. shame        
C. never        
C. harder      
D. slow        
D. know        
D. looked for  
D. well        
D. shoulders    
D. place        
D. Neither      
D. anger        
D. succeed      
D. suggested    
D. heard        
D. found        
D. sadness      
D. ever        
D. easier      
题型:填空题

在操作技能形成过程中,主要靠视觉控制的阶段是()。

A.操作定向

B.操作模仿

C.操作整合

D.操作熟练

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