数学公式破解飞艇的方法

简介：To make matters worse, as the officialdom became corrupt, officers occupied the farmland of the guards one after another and became big landowners. Military households not only had to be soldiers and shoulder military obligations, they also had to work as long-term workers for the officers, cultivating land and paying for food. Those who resist will be beaten with whips and dealt with according to military law.