题目内容

作业现场为两个及以上单位综合利用天窗在同一区间作业时，由工务部门指定作业主体单位，明确主体作业负责人。主体作业负责人负责协调各单位作业，各单位作业负责人必须服从主体单位作业负责人指挥，按时完成作业任务，确保达到规定的列车放行条件。

A. 对
B. 错

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