He was taken away by the police. He _________ a very serious crime.

A．must be committed

B．was being committed

C．must commit

D．must have committed

RRC连接建立时，控制面组建RrcConnectionSetup消息发给UE，正常情况下UE将回复（）消息。

A.Rrc Connection Complete

B.Rrc ConnectionSetup Complete

C.Drm Service Resqult

D.Setup Request Msg