![](https://lstatic.shangxueba.com/sxbzda/h5/images/m_q_title.png)
[主观题]
A.cancelled B.approved C.solved D.added
A.cancelled
B.approved
C.solved
D.added
![](https://lstatic.shangxueba.com/sxbzda/h5/images/tips_org.png)
A.cancelled
B.approved
C.solved
D.added
第2题
800m≤R<2000m的无缝线路地段,作业轨温超过锁定轨温+10℃~-15℃,起道高度不超过
A.10mm
B.20mm
C.30mm
D.40mm
第3题
A.20
B.30
C.40
D.50
第4题
A.20
B.+15,-20
C.+10,-15
D.±10
第5题
直线及R≥2000m的无缝线路地段,作业轨温超过锁定轨温(),拨道量不超过10mm。
A.+20℃
B.+15℃
C.+10℃
D.-20℃
第7题
A.20
B.+15,-20
C.+10,-15
D.±10
第8题
A.20
B.+15,-20
C.+10,-15
D.±10
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!