猜单双概率公式

简介：Xiao Xiaobai sighed secretly when he heard it, and couldn't help but said with relief: Sister Anya, don't think so much. Nine times out of ten, life is always unsatisfactory. If you are always immersed in dissatisfaction, how can you live? When a car reaches the mountain, there must be a road, and when a boat reaches the bridge, it will naturally go straight. Even if there is no solution and people are helpless, everything will have an ending.