The application of law of the international contract experienced an origin and development that went to law of nations to law merchant in the Middle Ages from conflict of laws to unify private law.

国际合同的法律适用经历了从罗马万民法到中世纪商人法再到冲突法及至统一私法的沿革，其实质是在寻找调整国际合同关系的“适当法”；

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This theory, allowing conflict rules for greatest flexibility and adaptability, alters the choice rules of the traditional private international laws by changing its rigidity and mechanics.

它改变了传统的国际私法僵硬、机械的法律选择方式，赋予冲突规范以极大的灵活性和适应性。

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Such difference leads to the conflict of laws in international multimodal transport contract.

以上这些差异最终导致了国际货物多式联运合同的法律冲突问题。

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