A.BA98::3169 B.::BA98:3169:0:0:0 C.0:0:0:BA98:3169:: D.::BA98:3169::
A.2191:0:0:0:9:900:100C:417A B.2191::0009:0900:100C:417A:: C.2191::9:900:100C:417A D.2191:0009:0900:100C:417A::
A.IPv4中的選項功能 B.高層協(xié)議 C.網(wǎng)絡(luò)地址分層功能 D.IPv6中新增的功能