5个数字三中三有多少组不重复

简介：In He Zhen's view, if you want to train an elite soldier, you must start with practicing swords and guns, shooting arrows to draw fire, and practicing military formations. Without these three items, it is impossible to train an elite soldier. It is useless no matter how well the formation is trained. Throughout the ages, people have not listened. Practicing walking can create a good soldier.