一、巨大成就的认识论源泉改革开放的20年是中国历史上变化最大，进步最快的20年。绵亘960万平方公里的中国大地，农村变样了，城市变样了。原来尚未摆脱贫困落后，而且国民经济在1976年时处于崩溃边缘，但在改革开放以后，国民经济高速发展，综合国力迅速增长。从1797年到1997 I. The Source of Epistemology of Great Achievements The 20 years of reform and opening up are the most varied and fastest-growing 20 years in Chinese history. Stretching 9.6 million square kilometers of land in China, the countryside has changed its shape and the city has changed its shape. It turned out that the national economy was on the brink of collapse in 1976, but after the reform and opening up, the national economy grew rapidly and the overall national strength grew rapidly. From 1797 to 1997