自水准点M(HM=100.000m)经4个测站至待定点 A,得hMA=+1.021m;再由A点经6个站测至另一水准点N(Hn=105.121m),得hAN=+4.080m。则平差后的A点高程为:
A.101. 029m B.101. 013m C.101. 031m D.101. 021m正确答案A
自水准点M(HM=100.000m)经4个测站至待定点 A,得hMA=+1.021m;再由A点经6个站测至另一水准点N(Hn=105.121m),得hAN=+4.080m。则平差后的A点高程为:
A.101. 029m B.101. 013m C.101. 031m D.101. 021m正确答案A