新中国成立后，中国经济地理教材内容与结构的演变具有渐进性，存在4种差异性的演变方式。
The development process of content and structure of China Economic Geography are gradual and exist 4 different fashions after the foundation of the country.
新中国成立后，中国经济地理教材内容与结构的演变具有渐进性，存在4种差异性的演变方式。
The development process of content and structure of China Economic Geography are gradual and exist 4 different fashions after the foundation of the country.
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