9个数字2个一组能组成多少组

简介：——Admiral of the Beijing camp, veteran general Tong Hanbang led 20,000 troops on the left, Gao Doushu, chief military officer and cabinet minister, led 30,000 troops on the right, Emperor Longwu personally led 30,000 elite troops on the center, together with accompanying chariots and horses, and front support The civilians, a total of nearly 150,000 people, fought against the Jungar Mongols.