设计了包括：销售管理、库存管理、服务信息管理的客户管理系统。
Design, including: sales management, inventory management, information management services to customers management system.
建立客户关系管理系统的关键是建立客户服务中心。
The key to build client relationship management is to set up a client service center.
建立客户关系管理系统的关键是建立客户服务中心。
The key to build client relationship management is to set up a client service center.
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