快三大小单双技巧公式吗

简介：The Song Dynasty had money and could support the cost of armor. This dynasty had financial difficulties, and the armor rate returned to that of the Han and Tang Dynasties. The armor soldiers did not even account for 30% of the total number of soldiers. The Ming army could not guard against the bows and arrows of Jianlu and collapsed at the first touch. Insufficient iron armor and inability to provide effective protection is also one of the reasons.