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）.

5.见题干（）

A. programs

B. applications

C. frameworks

D. constrains

下列哪种药物中毒是血液透析的首选指征()

A．苯巴比妥

B．甲醇

C．氯酸盐

D．格鲁米特

E．水杨酸类