问题：
[单选] Door-to-door services refer to carriers（）goods in the shippers＇and consignees＇ warehouse.
sending。delivering。pickingupanddelivering。shipping。
问题：
[单选] Storage creates the（）value in logistics.
warehousing。location。time。space。
问题：
[单选] （）logistics is the management by computer and Extranet.
Electronic。Functional。Virtual。Physical。
问题：
[单选] Cycle stock is the（）inventory based on the maximum needs.
lowest。highest。basic。medium。
问题：
[单选] （） is software to manage the relationship and communication between customers and suppliers.
CRM。MRP。ERP。SCM。
