单项选择题
For small and medium-sized companies, those logistics management is still（）
A.decentralized B.centralized C.integrated D.concentrated
单项选择题 The retailer and manufacturer （） about 5-10% of their merchandise being returned
单项选择题 Zero stock is the best way for（）
单项选择题 （）is the management system to control the material consumed, reduce inventory in the manufacture company.
