无论在运行中或停止运行中，严禁在（）上或其他设备上站立和行走。
参考答案：皮带
Do you think _____ true that _____ is hard work that leads to success? [ ]
A. it; it
B. it; what
C. that; it
D. what; which
切除ATP（列车保护）下的动车凭证为（）。
