S1-AP是eNB与S-GW之间的协议
参考答案：错
从ZRJ前接点闭合到1RJJHU或2RJJ（）接点断开，条件电源KZ—RJ—H有电。
Li Lida became the youngest person ever to cross the channel () Hainan Island and the mainland.
A．among
B．between
C．from
D．near
