未分类题

发生在区间、专用线的火灾事故，有关单位必须在( )以内上报路局总值班室和主管业务处以及铁路公安消防部门。

A.10分钟
B.15分钟
C.20分钟
D.30分钟

【参考答案】

【】D
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