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　　4、塔吊修理时，必须让修理人员佩戴安全带，以

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风险投资

Product Total
Medicine Bottle 1 $30.00
Medicine Bottle 1 $30.00
Subtotal $60.00
Total $60.00
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　　进度方面：按照施工进度计划，实际进度相对滞后。原因分析：①人工挖孔桩技术难度较大；②六、七份雨水天气较多；③脚手架钢管租赁困难，未能及时投入使用，从而影响