Originally introduced by Netscape Communications, （66） are a general mechanism which HTTP Server side applications, such as CGI （67） , can use to both store and retrieve information on the HTTP （68） side of the connection. Basically, Cookies can be used to compensate for the （69） nature of HTTP. The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based （70） .

A．programs

B． applications

C．frameworks

D．constrains

山区道路车辆进入弯道前，在对面没有来的情况下，（）。

A.可短时间借用对方的车道

B.可靠弯道外侧行驶

C.可加速沿弯道切线方向通过

D.应“减速、鸣号、靠右行”