7个号码三中三多少组公式

简介：In the morning, it was time for military posture and formation drills. On the central school field, the thirty square formations were motionless. The supervisor, carrying a whip, was patrolling and repeating the essentials of standing in military posture. However, there were those who were not standard or moved arbitrarily. , whip it over, no matter if the opponent is a hundred households or an ordinary soldier.