多项选择题
A.SGSN B.DNS C.GGSN D.网站设备
A.Detach B.PDP Context Deactivation C.GPRS RAU D.GPRS LAU
A.IMSI B.NSAPI C.TLLI D.P-TMSI
A.TI B.NI C.OI D.PI
微信扫一扫,加关注免费搜题
