世界黄金协会是总部设在伦敦的 非 营利的旨在促进黄金消费的组织.WGC is a London - based non - profit organization that promotes gold consumption.非营利的代理商会在为 非 营利的组织销售方面对课程是相当适当.A nonprofit agency would be quite appropriate for a course in marketing for ...