There are three parts in this thesis.In the first part, based on the ordinary relationship of two matters or two groupsof matters, presumptions find the A fact from B fact.

• 本文主要包括以下几个方面的内容:第一部分,对推定制度做了简单的介绍,认为推定是以事物之间的常态联系为基础,从一事实推导出另一事实的认定事实模式。