单项选择题
A.视准轴B.横轴C.指标差D.度盘分划
A.照准部偏心差B.视准轴误差C.横轴误差D.竖轴误差
A.绝对高程B.海拔C.高差D.相对高程
A.1m,2m,5mB.0.001m,0.002m,0.005mC.0.01m,0.02m,0.05mD.0.1m,0.2m,0.5m
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