题目内容
(请给出正确答案)
[单选题]
在地形图上,量得A点高程为21.17m,B点高程为16.84m,AB的平距为279.50m,则直线AB的坡度是()。
A.6.8%
B.1.5%
C.-1.5%
D.-6.8%
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A.6.8%
B.1.5%
C.-1.5%
D.-6.8%
A.50.00
B.70.70
C.100.00
D.141.42
A.(436,673)
B.(473,636)
C.(364,527)
D.(327,564)
A.8~10
B.10~12
C.8~15
D.10~20答案:D