单项选择题
A.Location of market B.Government regulation C.Competition D.Seasonality of products flow
What is the most important product-related factor to th...
单项选择题What is the most important product-related factor to the transport cost?（）
A.Linkages B.Distance C.Equipment D.Time
How many product-related factors are there to influence...
单项选择题How many product-related factors are there to influence the transport cost?（）
A.Four B.Three C.Two D.Five
Which mode of transportation is most flexible?（）A.Air ...
单项选择题Which mode of transportation is most flexible?（）
A.Air B.Ship C.Rail D.Motor
