【单选题】【消耗次数:1】
当经纬仪的望远镜上下转动时,竖直度盘()
与望远镜一起转动
与望远镜相对运动
不动
不能确定
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相关题目
【单选题】 当经纬仪的望远镜上下转动时,竖直度盘?
①  与望远镜一起转动
②  与望远镜相对运动
③  不动
④  不能确定
【单选题】 当经纬仪的望远镜上下转动时,竖直度盘( )
①  与望远镜一起转动
②  与望远镜相对运动
③  不动
④  与指针一起转动
【单选题】 旋转光学经纬仪的望远镜时,竖盘?。
①  随望远镜旋转,竖盘读数指标不动
②  不动,竖盘读数指标随望远镜旋转
③  不动,竖盘读数指标也不动
④  与竖盘读数指标都随望远镜旋转
【判断题】 望远镜在竖直度盘的左边称为盘左位置。
①  正确
②  错误
【判断题】 经纬仪整平的目的就是使望远镜处于水平位置。( )
①  正确
②  错误
【判断题】 经纬仪整平的目的就是使望远镜处于水平位置。
①  正确
②  错误
【单选题】 若全站仪盘左状态望远镜水平时的读数为90°,望远镜升高时读数L减小,则该全站仪盘左时竖直角的计算公式为( )。
①  δ=L-90°
②  δ=90°- L
③  δ=R-270°
④  δ=270°-R
【单选题】 望远镜视准轴指( )。
①  物镜光心与目镜光心的连线
②  物镜光心与十字丝交点的连线
③  目镜光心与十字丝交点的连线
④  物镜光心、目镜光心与十字丝交点的连线
【判断题】 光学经纬仪一般由望远镜、水平度盘、基座三部分组成。
①  正确
②  错误
【单选题】 ()是望远镜视线方向与水平线的夹角
①  水平角
②  竖直角
③  方位角
④  象限角
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【单选题】 To obtain a satisfactory result, one must apply two ____ of paint on a clean surface.
①  coats
②  levels
③  times
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【单选题】 No one would have time to read or listen to an account of everything ____going on in the world.
①  it is
②  as is
③  there is
④  what is
【单选题】 They have done things they ought_____.
①  not to do
②  not to be done
③  not to have done
④  not having done
【单选题】 ____ native to North America, corn has now spread all over the world.
①  In spite of
②  That it is
③  It was
④  Although
【单选题】 Bit by bit, a child makes the necessary changes to make his language ____.
①  as other people
②  as other people’s
③  like other people
④  like other people’s
【单选题】 Please____ me whether I should accept the offer.
①  advise
②  suggest
③  propose
④  direct
【单选题】 All the flights ____ because of the snowstorm, we had to take the train instead.
①  were canceled
②  had been canceled
③  having canceled
④  having been canceled
【单选题】 Everything is right here, _____?
①  isn’ t it
②  aren’ t they
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【单选题】 A camera takes light rays bounced off objects and____ them on a sheet of a film.
①  concentrates
②  mixes
③  combines
④  focuses
【单选题】 It has been proposed that we ____ our decision until the next meeting.
①  delayed
②  delay
③  can delay
④  are to delay