1、 余世元负责业主投诉处理与沟通，客服中心日常管理.并**抽查保洁部清洁卫生工作。

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　　3、对工地的电工、电焊、架子工及特种设备作业人员要持证上岗；

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　　项目部生产经理张xx针对于二号宿舍楼一层北段发生下沉的原因，进行了归纳和阐述：