题目内容
A marketing channel overcomes the time, place, and possession gaps that separate goods and services from those who need or want them.
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Marketing channel functions such as storage and movement and communications constitute a backward flow of activities.
A zero-level marketing channel typically uses a wholesaler and a retailer.
面部危险三角区的感染禁用热疗是为了防止：
Add-on services such as credit, delivery, installation, and repairs provided by the marketing channel are referred to as service backup.
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