单位大额定期存单的机构投资人为（）

A.机关、团体、部队、事业单位

B.企业

C.保险公司

D.所有对公单位均可

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 (2) 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) .

A. fixed B. flexible C. stableD. stateless