题目内容
(请给出正确答案)
[单选题]
知A点高程HA=72.445m,高差hBA=-2.324m,则B点的高程HB为:()
A.74.769m
B.70.121m
C.74.769m
D.70.121m
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A.74.769m
B.70.121m
C.74.769m
D.70.121m
A.74.769m
B.70.121m
C.-74.769m
D.-70.121m