C2B is the r（） of the traditional e-commerce model of B2C.（an exchange of positions or functions）_精华吧

C2B is the r（） of the traditional e-commerce model of B2C.（an exchange of positions or functions）

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C2B is the r（） of the traditional e-commerce model of B2C.（an exchange of positions or functions）

正确答案：reversal

Tag：现代邮政英语时间：2022-01-30 21:01:22

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