[单选题]（）is software about the relation between the customer the customer and the supplier in marketing

正确答案 ：A

Customer Relationship Management (CRM)

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

正确答案 ：C

More than 100 tons

[单选题]How many categories are there inwater transport?（）

正确答案 ：C

4

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