Originally introduced by Netscape Communications,（1）are a general mechanism which HTTP Server side applications, such as CGI (2) , can use to both store and retrieve information on the HTTP（3） side of the connection. Basically, Cookies can be used to compensate for the （4）nature of HTTP. The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based （5） .
（1）A、Browsers 
B、Cookies 
C、Connections  
D、Scripts
（2）A、graphics  
B、processes  
C、scripts  
D、texts
（3）A、Client  
B、Editor  
C、Creator  
D、Server
（4）A、fixed  
B、flexible  
C、stable  
D、stateless
（5）A、programs  
B、applications  
C、frameworks  
D、constrains