多项选择题
A.多径干扰 B.多普勒效应 C.阴影效应 D.带外干扰
A.MT SMS B.MO SMS C.MS终止的短消息 D.MS发起的短消息
A.MC14 B.MC739 C.MC736 D.MC721
A.IMSI Not Known B.MS GPRS Detached C.MS Not GPRS Responding D.MS Refuses
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