If you ________ talk about it with me, p

题型:选择题

问题:

If you ________ talk about it with me, please wait till I finish my work at hand. [ ]

A. can              

B. may            

C. must          

D. should

考点:情态动词
题型:选择题

【问题5】
假定分别在“职工”关系中的“年龄”和“月工资”字段上创建了索引,如下的 Select查询语句可能不会促使查询优化器使用索引,从而降低查询效率,请写出既可以完成相同功能又可以提高查询效率的SQL语句。
Select 姓名,年龄,月工资 from 职工
where 年龄>45 or 月工资<1000;

题型:选择题

根据汉语意思,拼写单词。

1. My mother is _____ (准备) the dinner for us.

2. Mr Wu _____ (邀请) me to join their school trip to the World Park yesterday.

3. We became very _____ (兴奋) when we saw the Eiffel Tower from the coach.

4.Who can see the  _____  (美丽) of this picture?

5. What an _____ (令人惊奇的) result! I can't believe my ears.

题型:选择题

将有源二端网络除源,求戴维宁等效电路中的电阻时,电压源和电流源的处理方法为()。

A.电压源短接,电流源开路

B.电流源短接,电压源开路

C.将电压源和电流源都拿走

D.用短路线代替

题型:选择题

新制或大修的重型轨道车,试运转不少于100km,试运装时,应由有()同行,以策安全。

题型:选择题
完形填空。
     In the city of Fujisawa, lives a woman named Atsuko Saeki. When she arrived, however, she   1   of
going to the United States. Most of what she knew about American   2   was from the textbooks the had
read. "I had a   3  in mind: Daddy watching TV in the living room. Mummy   4   cakes and their teenage
daughter off to the cinema with her boyfriend."
     Atsuko   5   to attend college in California. When she arrived, however, she found it was not her   6   
world. "People were struggling with problems and often seemed   7  ," she said. "I felt very alone."  One
of the hardest   8  was physical education. "We played volleyball,"she said. "The other students were   9   
it, but I wasn't."
      One afternoon, the instructor asked Atsuko to  10   the ball to her teammates so they could knock it 
 11  the net. No problem for most people. But is terrified Atsuko. She was afraid of losing face  12   she
failed. A young man. On her team  13  what she was going through. "He walked up to me and  14   ,'Come
on, You can do that.'"
      "You will never understand how those words of  15  . made me feel…Four words…You can do that.
I felt like crying with happiness."
     She made it through the class. Perhaps she thanked the young man; she is not    16  .
     Six years have passed. Atsuko is back in Japan,working as a salesclerk. "I have   17   forgotten the words,"
she said. "When things are not going so well, I think of them."
      She is sure the young man had no idea how much his kindness  18   to her. "He probably doesn't even
remember it." she said, That may be the lesson. Whenever you say something to a person―cruel or kind―
you have no ides how long the words will   19  . She's all the way over in Japan, but still she hears those four 
  20   words; You can do that.
( )1. A. learned     
( )2. A. way         
( )3. A. photo       
( )4. A. baking      
( )5. A. hoped       
( )6. A. described   
( )7. A. tense       
( )8. A. times       
( )9. A. curious about
( )10. A. kick       
( )11. A. through               
( )12. A. after      
( )13. A. believed   
( )14. A. warned     
( )15. A. excitement 
( )16. A. interested 
( )17. A. never      
( )18. A. happened   
( )19. A. continue   
( )20. A. merciful   
B. spoke              
B. life               
B. painting           
B. frying             
B. arranged           
B. imagined           
B. cheerful           
B. questions          
B. good at            
B. pass               
B. into               
B. if                             
B. considered         
B. sighed             
B. encouragement      
B. doubtful           
B. already            
B. applied            
B. stay               
B. bitter         
C. dreamed         
C. education       
C. picture         
C. steaming        
C. liked           
C. created         
C. relaxed         
C. classes         
C. slow at         
C. carry           
C. over            
C. because                 
C. wondered        
C. ordered         
C. persuasion      
C. puzzled         
C. seldom          
C. seemed          
C. exist           
C. simple        
D. heard               
D. spirit              
D. drawing             
D. drawing             
D. attempted           
D. discovered          
D. deserted            
D. projects            
D. nervous about       
D. hit                 
D. past                
D. until               
D. sensed              
D. whispered           
D. suggestion          
D. sure                
D. almost              
D. meane             
 D. live                
D. easy              
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