单项选择题
Saving or reducing expenditure in business is （）
A.Save money B.Increase cost C.cost planning D.cost control
单项选择题 （）is guaranteed by the full market supply and Just in time ( JIT ) .
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.
