[单项选择题] What could a MS do when its state changes from idle to ready?()
A.Power on
B.PDP context activation
C.GPRS attach
D.Transferring packets
正确答案:C

[单项选择题] What could a MS do when its state changes from idle to ready?()
A.Power on
B.PDP context activation
C.GPRS attach
D.Transferring packets
正确答案:C