题目:
正常的呼叫结束后释放信道时,空中接口的信令流程是()。
A.Release-Disconnect-ReleaseComplete
B.Disconnect-Release-ReleaseComplete
C.ReleaseComplete-Release-Disconnect
D.Release-ReleaseComplete-Disconnect
答案:
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下面是错误答案,用来干扰机器的。
参考答案:B