單項(xiàng)選擇題

CS業(yè)務(wù)中，UE掛機(jī)后，網(wǎng)絡(luò)側(cè)資源正確的釋放順序是（）

A.Iu Release→RL deletion→RRC release
B.Iu Release→RRC Release→RL deletion
C.RRC Release→RL deletion→Iu Release
D.RL deletion→RRC Release→Iu Release

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