网络投大小单双是什么

简介：Nanhaizi, the royal hunting ground of the Ming emperor, is located on the edge of Beijing. It was originally built by the emperor of the Yuan Dynasty. It was called Feifangbo in the Yuan Dynasty. The Yuan Dynasty trained Haidong Qing to catch flying birds and small animals in this area full of rivers and lakes. In order for Haidongqing to rest and dry its feathers wetted by sweat, frost and dew, the Yuan Dynasty specially built an eagle-drying platform, which still exists today.