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问题 单项选择题

一块平坦的野地有4个不同的隐蔽处：F、G、w、x，它们分别由4条道路联结，这4条路的名字分别是Q、R、S、T，并且长度相同，以下列方式联结：(1)Q仅仅联结F和W；(2)R仅仅联结G和W；(3)S仅仅联结F和G；(4)T仅仅联结G和X。

下列哪项是一名徒步者从F出发仅仅使用小路，并且使用小路不超过一次必须到达其他隐蔽处的顺序

A．GWX

B．WGX

C．WXG

D．XGW

答案

参考答案：B

解析：由题干知，从F出发，经过所有隐蔽处到达X的路径是Q、R、T，相应经过隐蔽处的顺序是W、G、X，所以选B

完形填空
完形填空。
     Today is   1    birthday in China. Many friends come to his home. He thanks them for    2   . They
bring a lot of presents for him. Yingying's mother cooks    3   Chinese food for them. Jim is very happy.
In the U.S, Jim often    4    hamburgers, French fries and coke. Here    5    knows something about China
and he likes Chinese food very much. His favorite fruit is    6   . He likes to have milk, eggs for breakfast
very much.    7   , he has no time to go home for lunch, so he has it at school.    8    supper he often has
fish, vegetables and fruit. Sometimes he goes out to eat with his    9    friends. He   10   meat at all. He
wants to be thin.
(      )1. A. Jim's first
(      )2. A. come          
(      )3. A. a lot          
(      )4. A. eats        
(      )5. A. it            
(      )6. A. strawberries
(      )7. A. In the evening
(      )8. A. For            
(      )9. A. a Chinese    
(      )10. A. doesn't like		B. first Jim's
B. to come      
B. many          
B. drinks        
B. he            
B. tea          
B. At noo        
B. With          
B. Chineses       
B. not like     		C. Jim's the first
C. coming          
C. a lot of         
C. has             
C. they            
C. tomato        
C. In the morning 
C.  In             
C. Chinese         
C. don't like      		D. Jim first  
D. comes          
D. a few          
D. have          
D. she            
D. eggs          
D. In the afternoon
D. To            
D. China          
D. doesn't likes
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多项选择题

椎间盘突出的MRI间接征象有（）

A.髓核突出

B.髓核游离

C.Schmorl结节

D.硬膜外静脉丛受压、迂曲

E.硬膜囊、脊髓或神经根受压
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