大小单双概率计算公式表格

简介：The Holy Dynasty was extremely strict about the appointment of officials. Generally, they were selected from lower-level soldiers and officers through layer-by-layer screening, and then promoted step by step. If you want to become a military attache, you must start as an ordinary soldier. If you want to become a civilian official, You have to start as an ordinary officer, and then through constant competition, you can get to the top, which is very difficult.