男性，53岁。无痛性黄疸2个月余，手术时发现肝脏胀大、胆囊肿大、壁厚，胆总管粗如拇指，胰头部可触及直径3cm的硬肿块，能推动。下列哪种手术适合该患者（）

A.胰头切除术

B.全胰腺切除术

C.胰十二指肠切除术

D.胆囊空肠吻合术

E.全胰十二指肠切除术

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) .

3（）

A.Browsers

B.Cookies

C.Connections

D.Scripts