【判断题】【消耗次数:1】
轨距是指直线线路上两条钢轨轨头内线之间的距离。
正确
错误
参考答案:
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相关题目
【单选题】 下列轨距中哪个是窄轨线路轨距。
①  600mm
②  1067mm
③  1435mm
④  1520mm
【单选题】 如某线路基本轨轨距为900 mm,轨型为30kg/m,道岔应选择: 。
①  900 mm 30kg/m
②  600 mm 30kg/m
③  600 mm 18kg/m
④  900 mm 18kg/m
【单选题】 “两条直线平行”是“两条直线没有公共点”的( )。
①  充分不必要条件
②  必要不充分条件
③  充要条件
④  既不充分也不必要条件
【多选题】 下列哪几项为矿用窄轨轨距?
①  600mm
②  1435mm
③  900mm
④  762mm
【单选题】 两条异面直线的公垂线的长度称为这两条异面直线的
①  长度
②  距离
③  大小
④  夹角
【单选题】 提出平行线的本质属性假设是:在同一个平面内、两条直线间的距离处处相等、两条直线不相交。这是属于数学概念形成的哪个阶段?(  ).
①  抽象本质属性
②  观察实例
③  分析共同属性
④  确认本质属性
【单选题】 “平面内两条直线平行”是“内错角相等”的()
①  充分而不必要条件
②  必要而不充分条件
③  充要条件
④  既不充分也不必要条件
【单选题】 ()命令可以方便地查询指定两点之间的直线距离以及该直线与X轴的夹角。
①  点坐标
②  距离
③  面积
④  面域
【单选题】 ( )命令可以方便地查询指定两点之间的直线距离以及该直线与X轴的夹角。
①  点坐标
②  距离
③  面积
④  面域
【判断题】 坡度是在线路纵断面上两点之间的高差与其距离比值的千分值。
①  正确
②  错误
随机题目
【单选题】 Mike is always losing something. He is a ____boy.
①  careful
②  hopeful
③  careless
④  hopeless
【单选题】 Dont be too ____ about things youre not supposed to know.
①  strange
②  amusing
③  curious
④  conscious
【单选题】 You can take as many as you like because these handouts are free of ____.
①  fare
②  charge
③  money
④  pay
【单选题】 22. One day while Mr. King was working, he had a/an ____: his left leg was badly injured.
①  business
②  accident
③  matter
④  event
【单选题】 This is the military ____, and nobody is allowed to get in without permission. ?
①  bond ?
②  B. zone ?
③  uniform ?
④  zoo ?
【单选题】 I haven’t made any new friends yet and everybody here makes ____ of me.
①  fun
②  smile
③  laugh
④  joy
【单选题】 Im going to the supermarket this afternoon. Do you have anything ____?
①  to be buying
②  bought
③  for buying
④  to buy
【单选题】 Dont forget ____ the window before leaving the room.
①  to have closed
②  to close
③  having closed
④  closing
【单选题】 Having plenty of time, ____.
①  we needn’t to have hurried
②  there was no need for us to hurry
③  we didn’t need to hurry
④  hurrying was not necessary
【单选题】 Today, however, some new skyscrapers ____ up from the ground in long, wide, and curves.
①  arise
②  raise
③  rouse
④  rise