三码三期必中一期

简介：Since the Ming Dynasty, no, since the Yuan Dynasty, the Central Plains dynasty has always been dealing with the Mongolian grasslands under the principle of one country, two systems. In the Central Plains, it implemented a centralized system based on the provincial system, but in Mongolia, it implemented a feudal system, with one khan being granted the title of feudal king. , or a king, and then just ignore everything and let them develop and govern themselves.