多项选择题
A.PDP Type B.APN C.QOS D.Address or Address Request
A.分配手机动态ip B.Radius认证 C.检测连接网站目的地址 D.QOS检测
A.SGSN B.GGSN C.DNS D.MS
A.Attach Accept B.Attach Reject C.Attach Complete D.Attach Success
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