單項(xiàng)選擇題

以下各消息中不是用Trafficchannel來(lái)傳輸?shù)氖??(?/h4>

A.ECAM(Extended Channel Assignment Message)
B.ESCAM(Extended Supplemental Channel Assignment Message)
C.PSMM(PilotStrength Measurement Message)
D.HDM(Handoff Direction Message)

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