已知A点高程HA=62.118m,水准仪观测A点标尺的读数A=1.345m则仪器视线高程为()

已知A点高程HA=62.118m,水准仪观测A点标尺的读数A=1.345m则仪器视线高程为()

A.60.773

B.63.463

C.62.118

D.63.118

正确答案是B