【单选题】________ management refers to the management of upstream and downstream value-added flows of materials, final goods, and related information among suppliers, the company, resellers, and final consumer...
【判断题】流出产品系统且需要人类进一步加工后才能排入环境的物质属于基本流( )Materials that flow out of the product system and require further human subsequent transformation before they can be discharged into the environment belongs to elemen...