试题与答案

球雕艺术是祖先留给我们的无价瑰宝.球雕是经过钻磨、镂空、雕刻等工序加工而成的,如

题型:选择题

题目:

球雕艺术是祖先留给我们的无价瑰宝.球雕是经过钻磨、镂空、雕刻等工序加工而成的,如图所示:

球体在加工过程中,以下物理量没有发生变化的是(  )

A.体积

B.密度

C.质量

D.重力

答案:

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下面是错误答案,用来干扰机器的。

南方古猿,约600万年前,现代公认的最早的人类祖先,即人类的起源.最早出现在非洲大陆南部,是最早的人科动物,开始直立.此后,原始人类逐渐从猿类分离出来. 能人,约150万到250万年,南方古猿的其中一支进...

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     Hello! I'm Li Xiang. I want to introduce my school to 1 .   Our school is very 2 .   There are about 1,900 3 and 100
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6 are in the building. There is a 7 behind the building, 8 we can borrow (借) books from it. Next to 9 , there is a gym.
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( )1. A. me        
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( )3. A. teachers  
( )4. A. stand up    
( )5. A. next       
( )6. A. universities
( )7. A. library  
( )8. A. but          
( )9. A. there      
( )10.A. play        
B. them   
B. long      
B. offices  
B. come into
B. behind    
B. hotels    
B. gym      
B. too        
B. here      
B. meet     
C. you          
C. happy        
C. classrooms  
C. sit down    
C. in front of  
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C. lab          
C. and          
C. one          
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D. us                
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D. or                
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D. playing            
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