The capacity of water ______ large tonnage at low variable cost places this mode of transp

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The capacity of water ______ large tonnage at low variable cost places this mode of transport in demand when low freight rates are desired and speed of transit is a secondary consideration.

A.in transporting

B.to transport

C.of transporting

D.transportation of

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热搜:关于氨基酸代谢错误的论述是_________。