4个数三个一组有多少组 不重复

简介：By the time the imperial court came to their senses and wanted to change back to the Kaizhong method, it was already difficult to recover. In addition, in the middle of the Ming Dynasty, the Mongols were in decline, the Jianlu were still on the rise, and there was no war at the border, although everyone in the court knew that the new law was detrimental to the border. , but it was beneficial to the court's tax revenue, so it acquiesced.