问题 选择题

在下图中,a、b两物体表面光滑,且a、b两物体均静止,a、b间一定有弹力的是[ ]

A、

B、

C、

D、

答案

答案:B

完形填空
完形填空。
     It was very late when we came out of the cinema. We knew the last train would leave   1   11:15, so we
ran as   2   as we could to the station. It was just after 11: 15 when we   3   the station, but the trains often
leave a little   4   and there was a train standing at Platform 1(第一站台), so we got in. We   5   for half an
hour, then we got   6   . We found the ticket collector and asked him   7   the train was going to leave.
     "Tomorrow morning at six o clock," he told us. 
     There were   8   taxis outside the station.   9   we walked home. It  10  us nearly two hours. The next
morning we felt very tired.
(    )1. A. in          
(    )2. A. fast      
(    )3. A. reached to  
(    )4. A. later       
(    )5. A. wait        
(    )6. A. out       
(    )7. A. how         
(    )8. A. no          
(    )9. A. but       
(    )10. A. spent    
B. for         
B. faster      
B. got         
B. early       
B. are waiting 
B. in          
B. when      
B. not         
B. or          
B. cost      
C. at         
C. fastest    
C. arrived in 
C. earlier    
C. waited     
C. off        
C. why        
C. none       
C. so         
C. paid     
D. on       
D. fastly   
D. arrived at
D. late     
D. waits    
D. on       
D .that     
D. nothing  
D. and      
D. took     
问答题