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问题 填空题

小车载着木块出现了图中木块向右倾倒的现象，是由于小车的运动状态发生了改变，你认为下列所举的现象符合实际的有____，_____，______，______。（只填序号）

A．小车作匀速直线运动          B．小车向右加速                             C．小车向右减速

D．小车向左减速                    E．小车向左加速                              F．小车由静止开始向左运动

G．小车由静止开始向右运动  H．小车向左由运动到静止                I．小车向右由运动到静止

答案

C；E；F；I

完形填空
完形填空。

     It's seven in the morning. After __1__ Mr. and Mrs. White __2__ their children to the school __3__ 
 the car. Then they go to work in a __4__ . The children have lunch at school. Father and mother have
 lunch in the supermarket. There __5__ four classes in the morning and two in the afternoon. After __6__ 
 the children play games for some time. Sometimes they__7__ volleyball on the playground. Then they go
  home by school bus. Mother cooks supper for the __8__ . The children help their mother do the
 housework. After supper the children spend about 2 hours __9__ their homework. Mother watches TV
 and father __10__ on the computer .

( ) 1. A. lunch      
( ) 2. A. take       
( ) 3. A. on         
( ) 4. A. hospital  
( ) 5. A. has        
( ) 6. A. classes    
( ) 7. A. make       
( ) 8. A. home      
( ) 9. A. do         
( ) 10. A. plays    		B. supper
B. bring
B. by     
B. factory
B. are    
B. school  
B. plays
B. child  
B. doing  
B. works  		C. dinner    
C. help     
C. at        
C. school    
C. is       
C. the class  
C. practise  
C. her      
C. to do     
C. uses     		D. breakfast      
D. get            
D. in            
D. supermarket    
D. have          
D. afternoon      
D. do            
D. family        
D. does          
D. starts        
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单项选择题

细菌总数测定中，菌落数大于100时采用（）报出结果。

A.按实数报出

B.两位有效数字，用10的指数表示

C.按四舍五入报出

D.四位有效数字表示
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