直方图的平均值和标准差怎么算

简介：Finally, you have just united, and the compatibility of the army is definitely insufficient for combat. Therefore, the demon cultivators who resist the rule of Dragon Palace have become a good place for you to train your troops. Of course, there must be some who surrender, and you don’t need to kill them all. Once the time is right, you can head to the front line to join the battle.