单项选择题
（）links all suppliers and customers as a chain in a certain product and service.
A. contract B. Business agreement C. supply chain D. network
单项选择题 The integrated logistics activities, equipment and information network and so on, is called （）
单项选择题 Ocean Bill of loading is the （）between carrier and shipper.
单项选择题 （）has three parts: warehouse, high story shelf and stacker.
