货物列车到发线有效长的计算公式为（）。_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

货物列车到发线有效长的计算公式为（）。

答案

参考答案：l_效=l_机+（Q-q_守）/w+l_守+l_俯

选择题

The stranger stopped and turned around ____ to see if someone was following him. [ ]

A. every few meters

B. every a few meters

C. every other meters

D. every meters

单项选择题

下列选项默认的布局管理器不是BorderLayout的是

A．Window

B．Panel

C．Frame

D．Dialog