[单选题]（）is the method to keep the best inventory level and position with the minimum cost to satisfy the demand

正确答案 ：B

Inventory control

[单选题]How many tons does the cargo 737 carry?（）

正确答案 ：C

More than 100 tons

[单选题]What is the most important marker-related factor to the transport cost?（）

正确答案 ：C

Competition

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