【判断题】RTK测量属于单点定位,只需要一台接收机即可。
【单选题】时间不具有直观的形象,人们只能通过某种媒体来认识、测量,说明时间概念有( )
【判断题】三、四、五级检修为高级检修,在具备相应车型检修资质的检修单位进行
【单选题】Do your parents go to work ____ Saturdays and Sundays? [ ]
【单选题】—Did your parents go to climb the Zijin Mountain last Sunday? 一No They _______ went to see a film. [ ]
【单选题】自动空气开关热脱扣器整定电流 ( ) 所控制负载的额定电流。
【单选题】—Did your parents go to climb the Zijin Mountain last week? —No, they went to the movies.
【单选题】_your parents go to Shanghai last week?