[单选题]（）are most important for modern logistics. Bar Code, POS, EDI and GPS systems dramatically improve the efficiency and accuracy of logistics activities.

正确答案 ：B

Informationtechnologies

[单选题]（）is one of functions in logistics, which can deliver goods to customer directly by order in the most economic way.

正确答案 ：A

Transportation

[单选题]What is the meaning of “short hauls”?（）

正确答案 ：B

The distance is not long

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