According to a certain type of rate, a shipper cannot be charged less than theappropriate rate of 4kg in most cases, even though his particular consignment mayweigh less than this, we call this type o
A. bulk unitization rates
B. minimum charges
C. class rates
D. special commodity rates
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In designing a logistical system, a delicate balance must be maintained betweentransportation cost and（）
A. material handling
B. warehousing
C. packing
D. service quality
Piggyback is a system of unitized multimodal land transport by（）.
A. road and sea
B. road and rail
C. road and air
D. rail and road
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