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问题 单项选择题

主动脉瓣狭窄可引起（）

A．左心室容量负荷过重

B．右心室容量负荷过重

C．左心室压力负荷过重

D．右心室压力负荷过重

E．原发性心肌舒缩功能下降

答案

参考答案：C

解析：

压力负荷是指心脏收缩时承受的负荷。如主动脉瓣狭窄可引起左心室压力负荷过重。

多选题
把单词分类，将其序号写在相应的横线中。
1. toast and jam
6. pea         
11. plane     
16. Monday     		2. kitchen 
7. cereal        
12. carrot
17. bedroom		3. Sunday      
8. bathroom    
13. Tuesday     
18. hamburger		4. cabbage  
9. mine     
14. yours     
19. train   		5. living room  
10. bus         
15. she                                
20. onion 

A. 食物:                                                                                                                  
B. 交通工具:                                                                                                             
C. 星期:                                                                                                                   
D. 蔬菜:                                                                                                                    
E. 房间名称:                                                                                                              
F. 代词:                                                                                                                   

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选择题

I think, though I could be mistaken, ______ she liked me.

A．who

B．which

C．that

D．what
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