下列哪些项不是设备直线运动的危险类型().

A.接近危险

B.经过危险

C.卷进危险

D.打击危险

E.飞物打击危险

Originally introduced by Netscape Communications, (21) are a general mechanism which HTTP Server side applications, such as CGI (22) , can use to both store and retrieve information on the HTTP (23) side of the connection. Basically, Cookies can be used to compensate for the (24) nature of HTTR The addition of a simple, persistent, client-side state significantly extends the capabilities of WWW-based (25) .

A．Browsers

B．Cookies

C．Connections

D．Scripts