单项选择题
（）is guaranteed by the full market supply and Just in time ( JIT ) .
A.Zero Inventory logistics B.Zero stock C.Inventory D.Outsourcing inventory
单项选择题 （）is more accurate and easier than Fixed Interval System ( FIS ) in the order method.
单项选择题 （）has three specific points: fixed line and announcing shipping time in advance.
单项选择题 （）is very convenient equipment for loading and unloading goods.
