5、 后山员工宿舍背后周围处设立禁止倒垃圾标牌，并清理现场垃圾，保持干净整洁。

• Keep it short and easy to remember.
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　　二、热情

• 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).

　　1、东教学楼、实验楼5月上旬进行主体验收，5月中旬进行室内外粉刷，6月底进行外墙面砖的施工；