在A.B两点之间进行水准测量,得到满足精度要求的往.返测量高差为hAB=+0.005m,HBA=0.009m,已知A点高程为417.462Mm,则( )
A.B的高程为417.460m B.B点的高程为417.469m C.往.返测高差闭合差为+0.014m D.B点的高程为417.467m E.往.返测高差的闭合差为-0.004m正确答案BE
在A.B两点之间进行水准测量,得到满足精度要求的往.返测量高差为hAB=+0.005m,HBA=0.009m,已知A点高程为417.462Mm,则( )
A.B的高程为417.460m B.B点的高程为417.469m C.往.返测高差闭合差为+0.014m D.B点的高程为417.467m E.往.返测高差的闭合差为-0.004m正确答案BE