向单线不应答站发出的列车应在进站信号机外停车,判断不应答原因及准备好进路后,再行进站。
参考答案:对
—How do you find the talk given by Mr. Smith —()
A. Very well
B. Excited
C. Boring
D. Not at all
强磁选机的场强过高会导致设备故障率上升。