问题 单项选择题

Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an (6) from a friend who asks you to open it. This is what happens with Melissa and several other similar email (7) . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages (8) .

As administrators seek to block dangerous email attachments through the recognition of well-known (9) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users.Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (10) access to your network.

9()

A.names

B.cookies

C.software

D.extensions

答案

参考答案:D

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     Mr. White liked shooting very much.  When he had time, he __1__ shooting with his friends. But one
 summer he said to himself, "I haven't been to the mountains before.  My holiday __2__ soon, so I'm going
  to go to the mountains to __3__ deer.  That must be interesting, I think. "
     So __4__ his holiday came, Mr. White went to the station, __5__ his ticket for the small station near
  the mountains.
     He __6__ at the small station and walked through fields and forest for __7__ kilometers.  Then he saw
  a farmer in the field. "Good morning," Mr. White said to him, "are there any deer here?"
     "Well," answered the farmer __8__ . "There was one last year, but the man __9__ the town came and
  shot at it, and it __10__ to another place now, I think. "
( ) 1. A. will go out
( ) 2. A. began  
( ) 3. A. see        
( ) 4. A. if      
( ) 5. A. buy       
( ) 6. A. got off    
( ) 7. A. few        
( ) 8. A. slow      
( ) 8. A. to        
( ) 10. A. has gone  
B. went out
B. have begun
B. play with
B. before  
B. bought  
B. got on  
B. a few  
B. quick  
B. from    
B. went    
C. has gone            
C. are going to finish
C. shoot              
C. when                
C. will buy            
C. gets off            
C. a lot            
C. fast              
C. on                
C. goes              
D. goes out    
D. will begin  
D. look at      
D. because      
D. brought      
D. has got off  
D. a little    
D. slowly      
D. for          
D. is going    
单项选择题