还有推销新产品的问题，广告费是由代理商还是厂家支付。

There is also the question of promotion of the new line, and whether advertising expenses should be paid by the selling agent or by the manufacturer.

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他们需要监督电话客服中心、室内广告代理机构以及其他一切协同公司推销产品的单位部门。

They supervise call centers, in-house advertising agencies, and other units that implement the promotional strategy of a company.

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