问题 单项选择题

根尖周病治疗原则应是

A.无痛操作,控制感染
B.无痛操作,封闭根管
C.无菌操作,消灭死腔
D.控制感染,杜绝再感染
E.彻底清除根管内感染源

答案

参考答案:A

完形填空
完形填空。
     Why    1    children go to school? Do you know? You may    2    that they go to school to learn Chinese,
English, and    3    subjects. This answer is    4    But do you know    5    they learn all these things? And are
these things all that they can learn    6    school?
     The answer is "No". Children must learn how to learn at school. No one can learn     7    from school.
When they    8    school they must continue (继续) to learn. So a good teacher at school    9    his students
to learn something and teaches them how to learn something and the ways to learn something. Then children
can continue to learn   10   after they leave school.
( )1.A.can       
( )2.A.say       
( )3.A.the others
( )4.A.right     
( )5.A.which     
( )6.A.at       
( )7.A.something          
( )8.A.leave     
( )9.A.teach     
( )10.A.well     

B.do        
B.speak  
B.other      
B.easy      
B.what      
B.to        
B.anything            
B.over      
B.teaches   
B.nice    

C.are             
C.tell         
C.another        
C.hard           
C.why            
C.for            
C.everything    
C.go to                                         
C.teaching      
C.good         
单项选择题