express service短语⁴⁵³⁵⁵ 基本例句 快递服务 网购达人 In Chapter Four, combining the specific business of Heilongjiang province postal express service department, a specific realization scheme and function display of the Postal CRM is showed. 第四章，结合黑龙江省邮政速递局的具体业务，给出了邮政 CRM系统的具体实现方案和功能展现。 cnki