采用解析法检测4个界址点坐标,检测精度与原测精度相同,原坐标依次为:J1(1150.25,2116.36),J2(1170.35,2148.27),J3(1262.46,2237.54),J4(1282.91,2252.85),检测坐标依次为:J1(1150.22,2116.31),J2(1170.32,2148.25),J3(1262.50,2237.56),J4(1282.99,2252.89),本次检测界址点点位中误差为()。
采用解析法检测4个界址点坐标,检测精度与原测精度相同,原坐标依次为:J1(1150.25,2116.36),J2(1170.35,2148.27),J3(1262.46,2237.54),J4(1282.91,2252.85),检测坐标依次为:J1(1150.22,2116.31),J2(1170.32,2148.25),J3(1262.50,2237.56),J4(1282.99,2252.89),本次检测界址点点位中误差为()。
A.±3.6cm
B.±4.3cm
C.±4.7cm
D.±6.6cm
正确答案:B