Based on role interact mode, the paper discusses the design method of B2B e-commerce simulation teaching system, for the purpose of providing an interactive and practical for students.

从提供一个交互、实用的B2B电子商务教学环境目的出发，基于角色互动模式的思路，阐述了B2B电子商务模拟教学系统的设计方法。

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Practice show that, the curriculum content system of simulation electronic technology which take unit circuit as the core has achieved good effect in teaching.

实践证明，以单元电路为核心的模拟电子技术课程内容体系在教学中取得了良好的效果。

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This dissertation applying the thought of modularization and opening system, a integrated physical and digital simulation system that suits for teaching and training and experiment is designed.

本文采用模块化、开放式系统设计思想，从整体上设计了一个具有物理与数字仿真相结合的适合于教学培训、科研实验的变电站综合自动化仿真系统的实现方案。

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