问题 单项选择题

UPDATE-SQL语句的功能属于 ______ 。

A.数据定义功能

B.数据查询功能

C.修改某些列的属性

D.修改某些列的内容

答案

参考答案:D

单项选择题 A1型题
完形填空
完形填空。

     Long ago, in a small village of Wakefield lived two farmers, Harry and Peter. Harry was very hard.
working while Peter was    1    . Every day Harry got up early and came home late, but Peter walked
around for fun.
      One summer there was no    2    and the crops (庄稼) were dying. Harry thought, "I must do
something to save these crops, or they shall die." With this    3    in mind, he went out to find a river so
that he could dig a canal (沟渠) to his field. He walked on and on, feeling tired and thirsty. After a    4    
search, he found a river full of blue water. He was very happy. He started digging a canal to his field. 
   5    it was noon his wife sent their daughter to bring Harry home    6    lunch. But Harry did not go.
He did not want to leave his work unfinished. He completed his work    7    at night. He Was very satisfied.
He went home, had a good meal and    8    into a sound sleep.
     Peter did the same. But he was not at all determined (有决心的). He also    9     digging a canal to his
field but he didn't have his work completed. His field did not get    10    water and all his crops died.
     Harry's field would be watered when needed. He had a good harvest because of his hard work.

( )1. A. cruel 
(     )2. A. rain  
(     )3. A. feeling
(     )4. A. quick 
(     )5. A. Whether
(     )6. A. for    
(     )7. A. early 
(     )8. A. fell  
(     )9. A. stopped
(     )10. A. clean

B. 1azy    
B. wind     
B. dream  
B. long    
B. Although 
B. to       
B. far     
B. 1ooked  
B. 1oved    
B. enough

C. careless 
C. cloud    
C. problem  
C. slow   
C. When    
C. with      
C. 1ate    
C. turned   
C. forgot  
C. 1ittle

D. silly    
D. river     
D. thought 
D. special   
D. Unless   
D. at         
D. deep     
D. walked    
D. started   
D. fresh