这张是北京作为都城的历史演变过程的一张地图 这里有元代 明代 清代以及民国时期古城遗址地图 他们的共同特点就是围绕着太液池而建立的
參考答案:This is Beijing takes the capital city a history successional variation process map,Here has the Yuan Dynasty, the Ming Dynasty, Qing Dynasty as well as the Republic of China time ancient city ruins map, Their common characteristic on revolves too the fluid pond to establish.