赌单双的概率问题简介：Before Song Yingxing resigned, he was only an eighth-rank official. Zuo Sizhilang was from the sixth rank and served in Zhanshifu of the East Palace. He was an assistant to the prince. In total, he was promoted two levels in a row.
Before Song Yingxing resigned, he was only an eighth-rank official. Zuo Sizhilang was from the sixth rank and served in Zhanshifu of the East Palace. He was an assistant to the prince. In total, he was promoted two levels in a row.
