一责任竞合(Concurrence),又称责任混合(Cornflex)或责任并存(Co-exist),从法学原理上来看,它是某一法律行为或事实(不法行为)引起多种不同的法律关系产生,因此,法律关系主体一方就一定目的享有多种请求权利,另一方就其单一行为须负多重责任形式的特殊现象。从债务人角度出发,其责任的承担称为“责任竞合”;从债权人角度出发,其权利的享有称为“请求权竞合”。在实践中,最常见的责任竟合是合同责任与侵权责任的竞合。当责任竞合案件含有外国因素时,即一起发生在境内或境外的不法行为所引起的多种责 Concurrence, also known as Cornflex or Co-exist, is a legal act or fact (wrongful act) that causes many different legal relationships to arise Therefore, the legal relationship between the main party for a certain purpose to enjoy a variety of claims, the other party for its singular behavior should take multiple forms of responsibility for the special phenomenon. From the debtor's point of view, the assumption of its responsibility is called “competing for competencies”; from the point of view of creditors, the enjoyment of its rights is called “competing claims.” In practice, the most common responsibility is the co-operation of contractual liability and tort liability. When competing cases of responsibility include foreign factors, multiple responsibilities arising from unlawful acts occurring both in China and abroad