问题 单项选择题

一般来讲,最适宜土壤微生物活动的水分含量范围为田间持水量的()

A.25%--30%

B.30%--60%

C.60%--80%

D.>80%

答案

参考答案:B

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     On Sunday morning, Bob usually   1   up very late. He washes his face and then   2   out to do morning exercise.
It is about 8:20 am. After he   3   his breakfast, he often goes to a shopping center(购物中心)   4   his mother.  The
shopping center is near his home, so they walk there. It takes   5   about 10 minutes to get there   6   .   The center is
new and big. There are many things there, such as TVs, fridges, bikes, computers, food and drinks. There are many
people there.   They are men and women, old and   7  .   Parents must look   8   their children because the shopping
center is so big.   Young children may get lost(迷失)in it. The things in this shopping center   9   usually good and
cheap. The workers there are always nice and   10  . So a lot of people like to buy things there.
( )1. A. gets      
( )2. A. walk      
( )3. A. has      
( )4. A. and      
( )5. A. they      
( )6. A. by foot  
( )7. A. tall      
( )8. A. after    
( )9. A. is        
( )10.A. kindly    
B. to get      
B. run        
B. having      
B. with        
B. them        
B. on foot    
B. short      
B. at          
B. are        
B. help                      
C. getting      
C. goes        
C. eat          
C. to          
C. their        
C. in foot      
C. fat          
C. for          
C. to be        
C. friend      
D. get            
D. going          
D. eating        
D. or            
D. theirs        
D. on walk        
D. young          
D. to            
D. be            
D. friendly                         
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