四个数字有多少种组合不重复公式

简介：In the world of cultivating immortals, spiritual materials are scarce and there are many monks. Not every monk will have a spiritual weapon after being promoted to Foundation Establishment. This is different from magical weapons. Not only is it difficult to refine, but it is also expensive. More importantly, spiritual weapons require It is best to choose one that matches your own attributes, so that you can achieve the best effect.