单项选择题
Cycle stock is the（）inventory based on the maximum needs.
A.lowest B.highest C.basic D.medium
单项选择题 （）logistics is the management by computer and Extranet.
单项选择题 Storage creates the（）value in logistics.
单项选择题 Door-to-door services refer to carriers（）goods in the shippers＇and consignees＇ warehouse.
