试题与答案

绘图题：请画出一般晶体三极管输出特性曲线，并注明三个工作区域。

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题型：问答题

题目：

绘图题：请画出一般晶体三极管输出特性曲线，并注明三个工作区域。

答案：

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下面是错误答案，用来干扰机器的。

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题型：完形填空
完形填空。
     There were two screws (螺丝钉) in an engine. One was proud of its   1   head. The second screw
was   2  , only doing its job to the best of its ability.
One day the second screw was a little rusted(生锈). Filled with   3  , the first screw said to the second,
"How   4    you have become!" Then it began to laugh so hard that it   5    to notice that it was working
itself loose. Finally it dropped off the   6  and fell into the dirty oil below.
Now, the second was faced with doing the   7  of two. Meanwhile the first screw cried, "Just look at me ! I'm dirty and all my   8    is gone."
      A short time later the owner of the engine   9   it up. He immediately noticed something didn't sound
right . When he  10 , he immediately saw one screw was missing. "Ah ha!" the owner said, "it must have
worked itself loose and fell onto the oil."
      He   11   into the oil and found the missing screw. "Look at you," the owner said. "you're all  12 with
oil. How ugly you are! But I'll   13    that right away." He reached for a rag and  14 all the oil and dirt off
until it shone even brighter than before. Then he   15   it on the part. Before he turned away, he noticed the
second screw was a little rusted. With the   16  , he wiped the head clean and bright. Then he walked
away.
      Finally the engine was started. The two screws, now   17  beautiful, held the part tight. " 18   me , my
friend ," the first screw said, "I was so busy  19   you that I didn't notice that I was working myself loose. I
shall no longer   20  others."
( )1. A. big        
( )2. A. shy        
( )3. A. pride      
( )4. A. small      
( )5. A. prepared    
( )6. A. ground      
( )7. A. work        
( )8. A. wealth      
( )9. A. finished    
( )10. A. drove      
( )11. A. walked    
( )12. A. covered    
( )13. A. create    
( )14. A. knocked    
( )15. A. took      
( )16. A. key        
( )17. A. probably  
( )18. A. Help      
( )19. A. waiting for
( )20. A. judge      		B. cool        
B. quiet        
B. pleassure    
B. weak        
B. refused      
B. engine      
B. lesson      
B. beauty      
B. put          
B. returned    
B. reached      
B. filled      
B. move        
B. turned      
B. put          
B. oil          
B. nearly      
B. Excuse      
B. listening to
B. invite       		C. nodding    
C. happy      
C. interest    
C. ugly        
C. happened    
C. seat        
C. problem    
C. voice      
C. started    
C. repaired    
C. jumped      
C. connected  
C. fix        
C. blew        
C. planted    
C. rag        
C. different  
C. Save        
C. laughing at
C. treat       		D. shining        
D. brave          
D. hope            
D. selfish        
D. failed          
D. wall            
D. travel          
D. dream          
D. broke          
D. checked        
D. looked          
D. compared        
D. carry          
D. wiped          
D. sent            
D. tool            
D. equally        
D. Accept          
D. speaking to    
D. expect          
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题型：单项选择题

根据证券投资基金法律制度的规定，下列有关开放基金申购、赎回的表述中，正确的是( )。

A．办理基金单位申购、赎回业务的人仅限于基金管理人

B．除基金合同另有约定外，基金管理人应当在每个工作日办理基金申购、赎回业务

C．投资人申购基金时，经基金管理人同意，可以在申购期满前交纳部分申购款项，在申购期满后30日内补交余款

D．基金管理人应当在收到基金投资人申购、赎回申请的当日对该交易的有效性进行确认
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