单项选择题
A.±50mm B.±200mm C.允许向曲线内侧偏移150mm D.允许向曲线外侧偏移150mm
A.±50mm B.±100mm C.±150mm D.±200mm
A.内侧偏移100mm B.外侧偏移100mm C.内侧偏移150mm D.外侧偏移150mm
A.5% B.10% C.15% D.20%
微信扫一扫,加关注免费搜题
