肉桂强心的主要作用机制是（） A.促进交感神经末梢释放儿茶酚胺 B.直接兴奋作用

题型：单项选择题 A1型题

问题：

肉桂强心的主要作用机制是（）

A.促进交感神经末梢释放儿茶酚胺

B.直接兴奋作用

C.β受体激动作用

D.α受体激动作用

E.M受体激动作用

考点：中药学(医学高级)中药药理学中药药理学题库
题型：单项选择题 A1型题

公元前215年的秦朝，曾出现大量妇女、儿童在田里劳动的场景，试分析是什么原因导致了这种情况的出现[ ]

A．秦朝的赋税沉重

B．秦朝徭役沉重

C．妇女儿童热爱劳动

D．秦的刑罚严厉
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题型：单项选择题 A1型题
2
3
4
=
33
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=______÷2=______%
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题型：单项选择题 A1型题

为了提高温室中蔬菜的产量．可采取的措施是（　　）

A．去掉一些叶片

B．增加氧气浓度

C．多施化肥

D．增加二氧化碳浓度
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题型：单项选择题 A1型题
完形填空。
     It was a warm March evening, and I'd just taken a seat on the bus that would take me home. It was nearly
6:00 PM, but the bus was not yet full and the driver gave no   1   that he intended to start the bus.
     A middle-aged woman took a seat opposite me. She was crying. Not speaking to anyone in particular,
she   2   narrated her story.
     She had come to the city to visit her daughter. On the way to the terminal, a thief had   3   one of her bags.
It had contained half of the money she'd brought with her. The other half was hidden under her blouse, so
she   4    still had some money left. The bus conductor, driver, and other passengers listened to her tale.
     At this time, an old man   5   got on the bus. He sat in the seat directly in front of the woman. After a few
minutes, all seats were   6  . The driver got behind the wheel and started the engine. The bus conductor collected
tickets and began asking us where we were   7  . When he came to the old man's seat, he became   8   and asked
the old man Whether he had any money. The old man   9   that he did not. He explained that he  10  all his money
this morning when he'd accidentally got on the wrong bus and now he was trying to go home.
     Upon heating this, the bus conductor  11  the old man to get off the bus. The old man was almost in tears as
he begged the bus conductor to let him take that bus  12  he could get home before dark. The bus driver
approached the old man, and repeated the conductor's  13  to get off the bus.
     "Stop troubling him! Can't you see he's only trying to get home?" she interfered. "He doesn't have any money!"
the driver shouted. "Well, that's no  14  to throw him off the bus," she insisted. Then she said, "How much is his
fare?" The bus conductor mumbled the amount. "Fine," said the woman. She  15  inside her blouse, took out
her  16  money, and handed the fares to the bus conductor. "Here's his fare and mine. Just stop giving him a hard
time."
     All eyes turned  17  the woman, who, just minutes before, had been crying over the money she'd lost. "It's
only money," she shrugged.
     By the time the bus rolled out of the terminal, she had given the old man bread and a dollar. She rode the rest
of the way home  18  a Mona Lisa smile of peace and grace, and the money she'd lost  19  was forgotten.
     On the road of life, the politeness and smiles of  20  can lighten our loads and lift our spirits. How much
sweeter the journey when we make it a little smoother and richer for others!
( )1. A. answer      
( )2. A. tearfully   
( )3. A. got         
( )4. A. surprisingly
( )5. A. in rags     
( )6. A. had         
( )7. A. getting on  
( )8. A. conscious   
( )9. A. realized    
( )10. A. spend      
( )11. A. asked      
( )12. A. so         
( )13. A. arrangement
( )14. A. good       
( )15. A. picked     
( )16. A. left       
( )17. A. in         
( )18. A. owning     
( )19. A. earlier    
( )10. A. customers   		B. agreement     
B. excitedly  
B. snatched       
B. peacefully   
B. shyly        
B. crowded       
B. getting down  
B. suspicious    
B. pretended    
B. has spent    
B. ordered      
B. until         
B. command      
B. sense        
B. removed       
B. saving      
B. to            
B. wearing       
B. sooner       
B. friends     		C. indication       
C. helplessly  
C. pulled            
C. naturally    
C. happily       
C. full            
C. getting off      
C. curious        
C. admitted       
C. had spent      
C. led           
C. if           
C. advice           
C. reason        
C. touched          
C. borrowed     
C. down            
C. hating          
C. later           
C. strangers   		D. talk                 
D. proudly     
D. caught                 
D. fortunately   
D. in disorder        
D. taken            
D. getting in          
D. anxious           
D. remembered                
D. was spent         
D. begged          
D. when              
D. decision            
D. doubt            
D. reached            
D. remaining      
D. on                   
D. losing              
D. former            
D. conductors  
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题型：单项选择题 A1型题

商业活动应遵循的规则是（）

A.明码标价，计量准确

B.唱收唱付，货款结清

C.货既售出，概不退换

D.诱导购物，扩大销售
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