单项选择题
设M点的高程为1021.0m,MN的水平距离为50.0m,M点至N点的坡度为+2%,则N点的高程为()
A.1020.0
B.1021.0
C.1022.0
D.1023.0
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单项选择题
A.1020.0
B.1021.0
C.1022.0
D.1023.0
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