问题 单项选择题

下列各项工作步骤中,______不是创建进程所必需的步骤。

A.建立一个PCB进程控制块

B.由CPU调度程序为进程调度CPU

C.为进程分配内存等必要资源

D.将PCB链入进程就绪队列

答案

参考答案:B

完形填空
完形填空。
     I became lame (瘸的) in both legs in my childhood. I can't stand  1  the support of two sticks. Only in
my wheelchair can I " 2 ".
     I still remember the first day at school. When I appeared at the door, everyone in the classroom stared
(凝视) at me in  3 . My face turned red. I couldn't help turning back. It was the  4  and sympathy (同情) in
their eyes that  5  me doing so. I went shyly towards an unoccupied (空的) seat.
    Being late, I didn't dare to walk in front of my classmates. I was afraid that I might be  6  at. In those
days I was very sad to see others walking happily.
     One day, a few students came up to me and asked me to go outside. I was really excited. They
encouraged me with a friendly smile and  7  me in my wheelchair from place to place. I was thankful to
them for giving me a chance to see the sights of our lovely school with my own eyes.
     After that we often read, played and talked together. My friends are always  8  to help me. It made me
  9  I am handicapped (残疾的).
     Once they asked me, "What is the most beautiful thing in our school?" Without hesitation (犹豫) I said,
"It is the  10 ."
( )1. A. with      
( )2. A. walk      
( )3. A. thought  
( )4. A. feeling  
( )5. A. made      
( )6. A. laughed   
( )7. A. drew     
( )8. A. smart     
( )9. A. forget     
( )10. A. teachers 
B. without   
B. run       
B. interest  
B. kindness  
B. stopped  
B. smiled    
B. placed    
B. ready    
B. remember  
B. schoolyard
C. under    
C. sit     
C. anger   
C. happiness 
C. kept     
C. stared    
C. pushed    
C. wise     
C. imagine   
C. classmates 
D. on        
D. stand     
D. surprise  
D. pain      
D. let       
D. looked                  
D. pulled    
D. polite    
D. think     
D. friendship
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