单元系统自学方法导引四川龚志华把单元看用一个系统，是从总体设计、整体把握，以达到自学最佳优化效果来考虑的。单元系统自学比起单篇课文自学有以下好处：１．去除盲目性和分散性，增强凝聚力和组合性；２．避免繁琐、重复，节省学时，增多训练时间。怎样进行单元系统... The unit system self-learning method guides Sichuan Gong Zhihua to use the unit as a system, which is considered from the overall design and overall grasp to achieve the best optimization effect of self-study. The self-learning of the unit system has the following advantages over a single text self-study: 1. Remove blindness and dispersal, enhance cohesion and composition; 2. Avoid cumbersome and duplicated, save hours, increase training time. How to make a unit system...