问题 单项选择题

计算机之所以能按人们的意志自动进行工作,最直接的原因时因为采用了______。

A) 二进制
B) 高速电子元器件
C) 存储程序控制
D) 程序设计语言

答案

参考答案:C

解析: 现代的计算机工作原理都是采用冯·诺依曼原理,该原理的思想是控制计算机进行操作的程序预先以二进制的形式存放在计算机中,程序执行的数据也是以二进制的形式存放在计算机中,计算机在程序的控制下一步一步地执行,而不需要人的干预。存储程序和程序控制是该原理的核心。

完形填空
完形填空。
     Three years ago, I had a job in a retail store (零售店). I    1   to talk to everybody and know what
was going on in their    2   . I remember a girl who started    3   there a few months after me. We seldom
talked but we always    4   each other and smiled.
     She always smiled in a really happy way    5   one day when we got to work in the    6    department.
She smiled as if she was the    7    girl in the world. I went up to her and asked, "What's wrong with
you?" She answered, "Why?" I said, "I could feel you're very    8   , but you're always trying to    9    it."
     Her mouth just dropped as if I had    10    her deepest secret, so we started talking. She told me    11   she was feeling unhappy and why she was trying to    12    that nothing was wrong. Time went by and we
became good friends. She'd always tell me I had    13    her life in so many ways.
     Today that girl is one of my best    14   . I really don't know what I would do    15    her. She has been
there for me in every    16    way a friend could be.
     What I'm trying to say is that you never know    17    you're helping yourself. I helped this girl never
knowing that at the same time I was helping myself by finding a __18 _ friend.
     So the next time you see a    19   and he needs someone who will    20   to him, wait and let him say
what he wants to say. You never know, you might just end up helping yourself.
( )1. A. managed  
( )2. A. lives    
( )3. A. shopping  
( )4. A. assisted  
( )5. A. though    
( )6. A. similar  
( )7. A. quietest  
( )8. A. sad      
( )9. A. keep      
( )10. A. caught  
( )11. A. when    
( )12. A. pretend  
( )13. A. protected
( )14. A. customers
( )15. A. without  
( )16. A. simple  
( )17. A. before  
( )18. A. truthful
( )19. A. stranger
( )20. A. belong  
B. intended
B. jobs    
B. talking
B. looked at
B. since  
B. nearby  
B. happiest
B. angry  
B. stop   
B. discovered
B. how    
B. become
B. recovered
B. friends
B. for     
B. possible
B. since  
B. useful  
B. worker  
B. refer  
C. remembered
C. studies  
C. going     
C. realized  
C. until    
C. same      
C. busiest    
C. happy     
C. hide      
C. controlled
C. why       
C. make      
C. supported
C. neighbors
C. upon     
C. strange  
C. because  
C. hopeful  
C. passenger
C. listen    
D. liked      
D. marriages  
D. working    
D. stared at  
D. unless    
D. different  
D. luckiest  
D. surprised  
D. show      
D. checked    
D. what      
D. admit      
D. changed    
D. classmates
D. with      
D. perfect    
D. when      
D. careful    
D. visitor    
D. turn      
单项选择题