问题 单项选择题

下列各进制的整数中,值最大的一个是( )。

A.十六进制数178

B.十进制数210

C.八进制数502

D.二进制数11111110

答案

参考答案:A

解析: 不同进制数之间的比较,必须统一转换成同一进制的数。一般转换成十进制数比较方便。十六进制数178转换成十进制数是376;二进制数11111110转换成十进制数是254;八进制数502转换成十进制数是322。

完形填空
完形填空。
     Mrs. Green lives in the country, and she doesn't know London very well. One day, she goes to London,
but she can't find her    1    . Just then, she    2    a man near the bus stop. " I can ask him the way." she says
to    3    . Then she goes over to the man and asks, "Excuse me, will you please    4    me the way to King
Street?" The man smiles with    5    answer. He    6    know English. He speaks Russian. He is a visitor.
Then he    7    his hand into his pocket (衣袋), takes out    8    and lets her    9    it. On the paper are these
words, "Sorry, I can't    10    English."
(     )1. A.street   
( )2. A.looks at 
(     )3. A.herself 
( )4. A.speak   
(     )5. A.not                        
(     )6. A.don’t   
(     )7. A.puts      
( )8. A.some money
(     )9. A.to look 
(     )10. A.speak   
B.way   
B.watches 
B.him                              
B.say   
B.an     
B.doesn’t
B.takes 
B.a pencil
B.look at 
B.say   
C.room          
C.sees            
C.himself        
C.talk        
C.no                             
C.not            
C.carries      
C.a piece of paper 
C.to look at      
C.talk        
D.house    
D.looks       
D.me        
D.tell                      
D.any          
D.does       
D.brings 
D.a ticket   
D.looking at  
D.tell   
单项选择题