自水準(zhǔn)點(diǎn)M(Hm=100.000m)經(jīng)4個(gè)測(cè)站至待定點(diǎn)A,得hMA=+1.021m;再由A點(diǎn)經(jīng)6個(gè)站測(cè)至另一水準(zhǔn)點(diǎn)N(HN=105.121m),得han=+4.080m。則平差后的A點(diǎn)高程為:()