A.343°05′15″ B.163°05′15″ C.152°31′05″ D.332°31′05″
A.m3=±24.0″,m4=±24.0″ B.m3=±34.0″,m4=±34.0″ C.m3=±34.0″,m4=0 D.m3=±34.0″,m4=0.85″
A.系統(tǒng)誤差 B.偶然誤差 C.系統(tǒng)誤差或偶然誤差 D.粗差