问题
单项选择题
水准测量中,A尺读数a=1.513rn,B尺读数6-1.915m,则两点间高差为:().
A.hAB =+3.428m
B.hAB =+0.402m
C.hBA =+0.402m
D.hBA =0
答案
参考答案:C
水准测量中,A尺读数a=1.513rn,B尺读数6-1.915m,则两点间高差为:().
A.hAB =+3.428m
B.hAB =+0.402m
C.hBA =+0.402m
D.hBA =0
参考答案:C