Essay 2 Transportation Decision 1.Selection of the mode is determined by the consideration of distance’cargo weig

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问题       Essay 2          Transportation Decision
1.Selection of the mode is determined by the consideration of distance’cargo weights,    linkage,timing and other requirements.Generally speaking,rail has high fixed cost and the relatively low variable cost.
  58.What are the advantages of aircraft delivery?(    )

选项 A、Safety and punctuality.
B、Costly.
C、Long distance
D、Deliver heavy loads.

答案A

解析
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