6个数三中三有多少个组合

简介：This group of cavalry appeared too suddenly. They did not come from Kaifeng, but came from Chenliu along the north bank of the Jialu River. They were not only fast but also concealed in their movement. Neither Dong Chaofu's Ye Bushou nor Wang Yuncheng's forward cavalry noticed it in advance. , by the time they discovered the traces of the enemy cavalry, it was already too late to notify or intercept them.