![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
A-E-M-003 4 2 3在线路允许速度160≥Vmax>120km/h正线,线路轨道静态几何尺寸容许偏差管理值中,轨向(直线)的经常保养标准为()mm
A.4
B.6
C.8
D.3
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、6
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.4
B.6
C.8
D.3
B、6
A.+6,-2
B.+6,-4
C.+5,-2
D.+5,-3
A.+5%~-10%
B.+10%~-10%
C.+7%~-10%
D.+8%~-10%
A.+7,-3
B.+6,-3
C.+5,-3
D.+4,-3