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：

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　　1、项目部自开工以来无质量事故，二号宿舍楼一层北段所发生的问题属于质量管理不到位，对此**有不可推卸的责任。

• Keep it short and easy to remember.
• Use keywords related to your blog's topic.
• Avoid using hyphens or numbers.
• Make sure it's available (you can use a domain registrar's search tool to check).

• Keep it short and easy to remember.
• Use keywords related to your blog's topic.
• Avoid using hyphens or numbers.
• Make sure it's available (you can use a domain registrar's search tool to check).

　　3、给出整改措施。