问题 单项选择题

某物资库存系统中的安全库存量为20件,需求量的期望值为100件/月,单位货物每月的储存费为0.5元/件·月,提前订货期的期望值为6天,每次订货费为100元,则其最佳订货批量、最小库存总费用和订货点为______。

A.200,110,520

B.400,110,40

C.1 200,100,40

D.200,110,40

答案

参考答案:B

完形填空
完形填空。
     Mr. Black lived in a small town. Nobody was    1   than him there, but he wished to get    2   
money all the time. One day on his way home, he found there was a    3   on the ground. He thought
it was    4   to him, so he picked it up and put it in his pocket That   5   , after he had supper, he
brought it out and began to   6    it in the room. He was interested in a piece of news on it Some
gold    7    in a desert He was afraid someone would know about it and started off,   8   telling
anybody about it. He tried to find the place    9   the gold was.
    The greedy man walked on the    10    desert for two weeks, but he didn't find any gold and
his food and water was   11   . His horse was so weak that he couldn't   12    it. He had to go
back to his hometown, but it was too   13   . His horse at last died and he was too hungry and
thirsty to go any   14   . He looked around, there was nothing   15    sand. Suddenly he saw a
man   16   on the ground far away. He crawled to him and found he was    17  , with a bag in
his hand. He hurried to open the bag to find something to   18   ,but it was full of gold. He threw
it away. As he was   19   , he cried and said," Now a bag of bread is far more   20    than a bag
full of gold. How unhappy I am!"
( ) 1. A. happier  
( ) 2. A. little
( ) 3. A. newspaper
( ) 4. A. important
( ) 5. A. dawn  
( ) 6. A. read  
( ) 7. A. discover
( ) 8. A. with    
( ) 9. A. which  
( )10. A. wet    
( )11. A. lifted
( )12. A. ride  
( )13. A. early    
( )14. A. near  
( )15. A. except
( )16. A. standing
( )17. A. dead  
( )18. A. wear  
( )19. A. sleeping
( )20. A. dangerous
B. sadder  
B. less    
B. picture
B. useful  
B. noon    
B. copy    
B. invent  
B. without
B. where  
B. rainy  
B. lost    
B. drive  
B. late    
B. nearer  
B. of      
B. running  
B. alive  
B. eat    
B. laughing  
B. impossible
C. richer    
C. a little  
C. photo    
C. interesting
C. afternoon  
C. improve    
C. was discovered
C. for      
C. when      
C. dry      
C. wasted      
C. mend      
C. easy      
C. far      
C. in        
C. lying    
C. healthy    
C. write    
C. leaving    
C. helpful  
D. poorer      
D. more        
D. map        
D. popular    
D. evening    
D. touch      
D. was invented
D. about      
D. that        
D. cloudy      
D. gone        
D. feed        
D. possible    
D. further    
D. off        
D. singing    
D. well        
D. draw        
D. dying      
D. delicious  
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