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问题 选择题

如果要清楚地了解各部分数量同总数之间的关系，用什么表示较合适？[ ]

A．条形统计图    

B．折线统计图    

C．扇形统计图

答案

答案：C

完形填空
完形填空。
Tom and Sam are twin brothers. They like playing soccer. They live 1 a big house 2 a beautiful garden. The house is 3 the sea. They often go to the sea and swim 4 it. There are four 5 in 6 family. They are parents, Tom and Sam.. Their father is a worker, 7 their mother is a teacher. 8 is Sunday today. Tom and Sam don't go to school. Their parents are not at work. They go to a park by car. Now they are in the park. The two 9 are swimming in the river and their parents are sitting 10 a tree. Look, they are talking and laughing. A bird is flying in the sky.

(    )1. A. in    
(    )2. A. in    
(    )3. A. near  
(    )4. A. in    
(    )5. A. boys  
(    )6. A. them  
(    )7. A. or    
(    )8. A. It    
(    )9. A. girls  
(    )10.A. in    

 

B. on      
B. on      
B. in      
B. near    
B. girls  
B. theirs  
B. all    
B. This    
B. child  
B. on      

C. at      
C. with    
C. at      
C. to      
C. workers  
C. their    
C. and      
C. That    
C. people  
C. under    

D. to      
D. to      
D. on      
D. on      
D. people  
D. they    
D. so      
D. It's  
D. children
D. at      
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计算题

一个铜球的质量是178g，体积是40 cm3，试判断这个铜球是空心的还是实心的．(铜=8.9×103kg／m3)
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