问题 单项选择题

下列不属于物理致癌因子的是()。

A.煤焦油的作用致癌

B.X射线照射致癌

C.紫外线照射致癌

D.电离辐射致癌

答案

参考答案:A

解析:BCD都属于物理因素,不符合题意。A为化学因素,符合题意,本题选A。考点:致癌因子点评:本题考查了学生的识记能力,难度不大,只要记住相关的知识点即可得出正确答案。

完形填空
完形填空。
     Michael Essany is the young star of his own TV talk show. When he was 14, he bought some  1  
machines and asked a local television station to air (播放) his show. Michael contacted 500 famous people
but only three of them  2  to be on his show. However, now many well-known people want to be on his
show. In 2003, the Michael Essany Show became so  3  that even the E! network made a show about his
show!
     Michael's show is  4  from the living room of his family's house. Before the show starts, his parents  5 
 the guests at the airport and make them comfortable. While the show is  6 , Michael tells jokes and interviews
the guests, and his parents  7  the video machines. After Michael finished the show, the guests eat dinner with
Michael and his  8  in the dining room.
     Michael's fame (名气) is  9 , but he still has plans and goals. "I would like to be the host of The Tonight
Show. That is my  10 , and it's a dream I intend to realize one day."
( )1. A. radio  
( )2. A. forgot  
( )3. A. strange 
( )4. A. recorded 
( )5. A. help out 
( )6. A. on    
( )7. A. mend   
( )8. A. family  
( )9. A. falling 
( )10. A. advice 
B. video    
B. refused   
B. popular   
B. discovered  
B. look after  
B. off     
B. run     
B. audience   
B. disappearing 
B. dream    
C. Internet  
C. agreed    
C. serious   
C. introduced
C. pick up                     
C. up        
C. sell      
C. boss      
C. growing   
C. story     
多项选择题