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电商背景下农村物流配送模式选择研究
Study on Rural Logistics Distribution Mode Selectionunder The Background of The Electronic Commerce[Abstract]With the development of the Internet and e-commerce,the increase inthe ...
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中山大学博士学位论文中国城市经济增长研究三.转型阶段出现资源分配空间分化39第三节小结40第四章城市个体经济增长的全要素生产率分析…41第一节引言…41第二节城市全要素生产率的度量方法43第...
C6140普通车床主轴箱传动设计
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