问题:
A.B两点的高差,从A到B共设了两个测站,第一测站后尺中丝读数为1.523m,前尺中丝读数1.270m,第二测站后尺中丝读数1.030m,前尺中丝读数1.748m;从B到A共设了两个测站,第一测站后尺中丝读数为1.234m,前尺中丝读数1.470m,第二测站后尺中丝读数1.430m,前尺中丝读数0....
问题:
A.254.840,483.476B.150.644,26.720C.64.222,52.436D.341.262,257.760
问题:
A.12.6mmB.6.3mmC.2.8mmD.12.5mm
问题:
A.1/5000B.1/2000C.1/1000D.1/500
问题:
A.0~360B.0~90C.0~180D.-90~90
问题:
A.44.76mB.44.86mC.44.93mD.45.00m
问题:
A.1?/πB.1′/πC.100?/πD.206265″
问题:
A.10mmB.14mmC.20mmD.40mm
问题:
A.50?20′B.129?40′C.230?20′D.30940′
问题:
A.1.408B.1.632C.1.808D.2.032
问题:
A.38,225?B.38,114?C.20,117?D.21,123?
问题:
A.28mmB.40mmC.283mmD.400mm
问题:
A.视线高,影响大B.视线低,影响大C.影响与前尺还是后尺倾斜有关D.影响与视线高低无关