![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
-D-H-001 3 2 3在允许速度小于200km/h的线路上,曲线正矢作业验收容许偏差中曲线半径250m<R≤350m时,圆曲线的正矢连续差为()
A.4mm
B.6mm
C.10mm
D.15mm
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、6mm
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.4mm
B.6mm
C.10mm
D.15mm
B、6mm
A.5
B.7
C.8
D.3
A.4
B.6
C.8
D.3
A.+6,-2
B.+6,-4
C.+5,-2
D.+5,-3
A.+12mm,-8mm
B.+10mm,-7mm
C.+8mm,-6mm
D.+8mm,-4mm