（）is not a physical wall, but a lot of virtual data to pro

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防火墙

[单选题]（）is not a physical wall, but a lot of virtual data to protect the computer network.

A. Data wall
B. Data Channel
C. Data base
D. firewall

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[单选题]（） are activities that manage the space needed to hold the inventories.

A. Stacking
B. Warehousing and storage
C. Dispatching
D. Goods delivering

[单选题]Organizations are now extending their （） beyond the end customer to include the acceptance and disassembly of final products for reuse in the new products.

A. Sourcing strategy
B. Distribution channels
C. Customer service
D. Internal functions

[单选题]How long the haul for international deep-sea movement usually? （）

A. Very long
B. Ten thousands of miles
C. Thousands of miles
D. Thousands of kilometers

[单选题]The integrated logistics activities, equipment and information network, and so on, is called （）

A. logistics integration
B. Logistics industry
C. Logistics center
D. Logistics Park

[单选题]How many stages in the processing of logistics integration?（）

A. One
B. Two
C. Three
D. Four

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