阶梯倍投方法有哪几种

简介：I have a good friend named Yang Zhijun, who was the Qianzong of the Beijing Camp. Three years ago, in the Battle of Liaodong, he was defeated and surrendered to the Jianlu. However, I always firmly believe that he did not surrender sincerely, but imitated the Han Dynasty. Li Ling wants to wait for an opportunity to return to my country, the Ming Dynasty. Last year, I heard that he was serving as a staff general in the Han army camp in Shenyang.