Before the formation of leaves , the nutrition for the development of viviparous plantlet is supplied by its parent , which is a kind of typical foraging behavior . but as to parents , it is a kind of parental breeding behavior and altruism . when talking about heredity and fitness , such a kind of altruism is a sort of egoism too 在胎生苗叶片产生以前，它的营养全部由母体提供，属于全异养阶段，这是一种典型的觅源行为；从母体的角度来看，这又属于一种亲代哺育行为与利他行为；而从遗传与适合度的角度考虑，母体的这种利他行为同时也是一种利己行为。
Basing on the analysis of characters generalization and the influence elements , this article sets up the corresponding models of discriminate and integrate evaluation of policy factors by using the theory of fuzzy - element , which starting with the analyzed result of ism that can influence on the policy factors fuzzy identification 辨识模型是从政策影响因素的ism分析结果出发，依据政策因素的特征，结合各方面特征的权重来确定各影响因素的模糊辨识值，并根据模糊辨识值的大小来辨识出政策因素对我国汽车工业的适合度。
