A.1, B.2, C.3, D.4.
A.隨機(jī)接入前導(dǎo)序列分配, B.隨機(jī)接入前導(dǎo)序列, C.隨機(jī)接入響應(yīng), D.發(fā)送L2/L3消息.
A.10, B.11, C.12, D.13.