单选题:隧道竣工后,应在直线地段每(  )、曲线地段每(  )及需要加测断面处,测绘以路线中线为准的隧道实际净空,标出拱顶两程、

题目内容:
隧道竣工后,应在直线地段每(  )、曲线地段每(  )及需要加测断面处,测绘以路线中线为准的隧道实际净空,标出拱顶两程、起拱线宽度、路面水平宽度。 A.100m,100m
B.100m,50m
C.50m,50m
D.50m,20m
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