单选题 When ______ prices from the printer, tour operators should approach several companies, as quotations can vary substantially between printers.
【正确答案】 C
【答案解析】本题主要考查的知识点为旅游宣传册的印刷。因为印刷商的报价会有很大的不同，所以当经销商从印刷商那儿得知价格时，应该多询问几家公司。