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问题 单项选择题 A1/A2型题

下列骨折中最不稳定的骨折类型是（）。

A.嵌插骨折

B.斜形骨折

C.青枝骨折

D.横形骨折

E.裂缝骨折

答案

参考答案：B

完形填空
完形填空。
     This is a picture of my __1__. My grandpa and my grandma __2__ old. My father's __3__ English
teacher. He is a __4__ man. My mother is a doctor __5__ are students. We're in No. 2 Middle School.
We're not in __6__ grade. My brother is __7__ Class 1, Grade 2 I'm in Class 2, Grade 1. __8__ name
is Lin Tao. I'm only __9__.They all like __10__very much (很).
( )1. A. family          
( )2. A. is            
( )3. A. the          
( )4. A. England      
( )5. A. Me and my brother
( )6. A. the same        
( )7. A. to            
( )8. A. Your          
( )9. A. ten          
( )10. A. them        		B. families        
B. has            
B. an              
B. English        
B. My brother and me
B. a same          
B. at              
B. My              
B. four            
B. me              		C. family's        
C. are            
C. a              
C. Chinese        
C. Brother and me  
C. our            
C. in              
C. My brother's    
C. one            
C. it               		D. a family        
D. am              
D. ×              
D. Japan            
D. My brother and I
D. ×              
D. ×              
D. His              
D. twenty          
D. I                
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单项选择题

图5-7-15所示外伸梁受移动载荷P作用，对梁内引起最大拉应力时，载荷移到的位置有四种答案：（）

A.A

B.B

C.C

D.D
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