【多选题】旅游团离开本地的前一天,地陪应认真做好旅游团的交通票据核实工作,核对( )。
【单选题】What is tree of robotic drivers?
A.
It will take some time before robotic drivers can be put to practical use.
B.
Robotic drivers are not allowed to drive on busy roads.
C.
Robotic drivers can never replace human drivers.
D.
Robotic drivers are too expensive to use.
【单选题】关于检验结果的报告内容,下列哪项不是必备的
【多选题】旅游团离开前一一天,地陪应认真核实旅游团离开的飞机(车、船)票,(起飞、开车、起航)时间要核实( )
【简答题】力偶是作用在同一物体上大小相等、方向相反, 平行的一对平行力