计算:sin60•tan45°=______.

题型:填空题

问题:

计算:sin60•tan45°=______.

考点:特殊角三角函数值
题型:填空题

如图10-2,设罪犯与警察在一开阔地上相隔一条宽0.5公里的河,罪犯从北岸A点处以每分钟1公里的速度向正北逃窜,警察从南岸B点以每分钟2公里的速度向正东追击.则警察从B点到达最佳射击位置(即罪犯与警察相距最近的位置)所需的时间是( ).

A.分

B.分

C.分

D.分

E.分

题型:填空题
完形填空。

     Once, when I was a teenager, my father and I were standing in line to buy tickets for the circus.   1  ,
there was only one family between us and the ticket counter.
     This family made a big impression on me. There were eight children, all probably under the age of 12.
Their clothes were not   2   , but they were clean. The children were    3  , all of them standing in line,
two-by-two behind their parents,  4   hands. They were excitedly jabbering (喋喋不休地说) about the clowns,
elephants, and other acts they would see that night.
      One could   5   they had never been to the circus before. It   6   to be a highlight of their young lives.
     The ticket lady asked the father how many tickets he wanted. He   7   responded,"Please let me buy  8  
children's tickets and two adult tickets so I can take my family to the circus." The ticket lady 9   the price.
The mother's head   10  , and her lip began to quiver. The father leaned a little  11  and asked,"How much did
you say?"
     The ticket lady again quoted the price. The man didn't have enough money.
      Seeing what   12   , my dad put his hand in his pocket,  13   a $20 bill and dropped it on the ground. (We
were not wealthy in any sense of the word!) Then reached down,  14   the bill, tapped the man on the shoulder
and said,"Excuse me, sir, this fell   15  your pocket."
      The man knew what was going on. He wasn't begging for a handout   16   certainly appreciated the help
in a desperate, heartbreaking, embarrassing  17   He looked straight   18   my dad's eyes, took my dad's hand
in both of his, squeezed tightly onto the $20 bill, and with a tear running down his   19  , he replied, "Thank
you, sir. This really means a lot to me and my family."
      My father and I went back to our car and  20   home. We didn't go to the circus that night, but we didn't
 go without.

( )1. A. Immediately 
( )2. A. expensive   
( )3. A. badly-behaved
( )4. A. holding     
( )5. A. know         
( )6. A. advised     
( )7. A. happily     
( )8. A. six         
( )9. A. answered     
( )10. A. dropped   
( )11. A. nearer     
( )12. A. up to     
( )13. A. turned out 
( )14. A. picked up 
( )15. A. off       
( )16. A. and       
( )17. A. situation 
( )18. A. into       
( )19. A. head       
( )20. A. went       
B. Finally   
B. cheap     
B. polite   
B. shaking   
B. understand 
B. recommended
B. honestly 
B. eight     
B. quoted   
B. bent     
B. harder   
B. going on 
B. handed out 
B. took up   
B. from     
B. but       
B. condition 
B. onto     
B. mouth     
B. got       
C. Hopefully      
C. plain           
C. well-behaved  
C. putting        
C. judge          
C. promised         
C. bravely      
C. ten             
C. spoke         
C. shook         
C. tighter       
C. happened      
C. pulled out    
C. sent up         
C. down          
C. or              
C. surrounding     
C. at            
C. cheek          
C. drove        
D. Suddenly    
D. bad         
D. lovely      
D. waving      
D. sense       
D. allowed     
D. proudly     
D. two         
D. said        
D. nodded      
D. closer      
D. the matter  
D. put out     
D. made up     
D. out of      
D. so          
D. position    
D. in          
D. nose        
D. walked      
题型:填空题

苏州园林的造园思想可归纳为()。

A、渔隐

B、入世

C、退思

D、享乐

题型:填空题

提高无机材料透光性的措施有哪些?

题型:填空题

哪些情形,不予解除抵押?

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