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问题 单项选择题

以下选项中，（）不是磁盘存储空间的常用管理方法。

A.位示图

B.记录的成组操作

C.空闲块表

D.空闲块链

答案

参考答案：B

完形填空
完形填空。
     The Browns   1   a building with two stories (层).   2   the first floor, there   3   a garage (车库), a living
room, a dining room and a kitchen. Mr. Brown has a new car. He often   4   it to work. Mrs. Brown is a nurse.
She often goes to work   5   , because the   6   is near to her house. On the second floor,   7   two bedrooms,
a study, a living room and a bathroom. The big bedroom is   8   Mr. and Mrs. Brown. The small one is for
their son, Jim. In the study, there is a computer. Jim usually plays games and downloads (下载) music   9   the
Internet. The Browns have a very nice garden behind their house. It has some tall trees and many flowers. Mr.
and Mrs. Brown work hard in their garden in   10   spare times. Now Mrs. Brown is getting some flowers in
the garden. She will put the flowers in the dining room and the living room.
(   ) 1. A. has     
(   ) 2. A. On     
(   ) 3. A. is     
(   ) 4. A. by     
(   ) 5. A. by her bike
(   ) 6. A. school  
(   ) 7. A. there is  
(   ) 8. A. for     
(   ) 9. A. to     
(   ) 10. A. his     		B. have   
B. In   
B. am   
B. drives 
B. on bike 
B. park  
B. there are 
B. with   
B. behind  
B. her               		C. in       
C. At        
C. are       
C. rides     
C. by bike     
C. company    
C. there be     
C. to      
C. in front of 
C. their                       		D. are             
D. Of              
D. will be         
D. in              
D. ride a bike     
D. hospital       
D. there have        
D. about           
D. from            
D. my            
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单项选择题

冻结深度小于（）ｍ时，在永久井壁施工全部完成后方可停止冻结。

A.300

B.250

C.200

D.400
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