LKJ2000型监控记录装置A、B机同时故障时，报警时间达到（）监控装置施行紧急制动
A.1min
B.2min
C.3min
参考答案：C
He kept sending her presents in an attempt to win her ________.
A．respect
B．favor
C．admiration
D．pleasure
按电话闭塞法行车，如何将首次列车接如本站并发出?
