单项选择题
（）links all suppliers and customers as a chain in a certain product or service.
A.Contract B.Business agreement C.supply chain D.network
单项选择题 The integrated logistics activities, equipment and information network etc is called（）
单项选择题 Ocean bill of lading is the（） between carrier and shipper.
单项选择题 （）has 3 parts: warehouse, high story shelf and stacker.
