[单选题]

A点高程为50.000m,测得hAB=-1.401m,hBA=1.408m,则B点高程为()米

A .48.569

B .48.596

C .-1.404

D .1.404

参考答案与解析:

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A点高程为50.000m,测得hAB=-1.401m,hBA=1.408m,则B