单项选择题
（）is to protect goods not to be deteriorated like for and medicine.
A.packaging
B.special packaging
C.green packaging
D.vacuum packaging
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相关考题
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单项选择题
（）is the way to deliver goods for different shippers in the same truck by the most economic route.
A.Joint distribution
B.United distribution
C.Multiple deliveries
D.joint delivery -
单项选择题
（）is not a physical wall but a flow virtual data to protect the computer network.
A.data wall
B.data channel
C.database
D.firewall -
单项选择题
（）means to provide facility for customer’s need or inquiry and arrange it.
A.service
B.business
C.customer service
D.making money
