多项选择题

生产厂商的供给情况包括 A.
商品供应源及渠道 B.
竞争者的情况 C.
替代品 D.
互补品

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单项选择题

A “documents against payment” term in an international sales contract is used when the buyer wants to confirm that the goods have been shipped before making payment.
A、正确
B、错误