Lifting and shoring part includes procedures covering maintenance,overhaul and repair,removal and replacement,as well as abnormal conditions such as belly landing,nose landing,etc.
A.顶升和支撑部分包括维护、大修和维修,拆卸和更换程序,以及比如腹部着地、机头着地等异常情况。 B.顶升和支撑部分包括维护、大修和维修程序,拆卸和更换以及比如腹部着地、机头着地等异常情况。 C.顶升和支撑部分包括维护程序,大修和维修,拆卸和更换,以及比如腹部着地、机头着地等异常情况。正确答案A