三个数字能组成多少组

简介：mom! I know that you want your son to have a bright future and get ahead in life, and you hope that I can get into a good university. Although getting into a good university does not mean getting ahead, since it is what you are looking forward to, I will work hard and not let you down, Xiao Xiaobai looked at the ceiling of the room and murmured to himself with a misty look.