列车运行调度管理信息系统缩写是DMIS
参考答案：对
A computer does only what thinking people _________.
A．have it do
B．have it done
C．have done it
D．having it done
A．a为动滑轮，B端钢缆受到滑轮组的拉力大小约为3G
B．a为动滑轮，B端钢缆受到滑轮组的拉力大小约为G
C．a、c为动滑轮，B端钢缆受到滑轮组的拉力大小约为3G
D．a、c为动滑轮，B端钢缆受到滑轮组的拉力大小约为G
G
G