倍投法公式

简介：Su Chengye smoked a cigarette and said: "A friend of Su Can's who is good at playing. I heard Su Can said that he is a child of a high-ranking official's family. His parents are strict. He is a little rebellious himself. He ran away from home and came out to relax. In our case, I have been living at home for a while. This child is good at reading. He is studying in a key high school in Xingcheng City. It is obvious that he is a good child.