疾病对文明进程的影响-美洲文明 Ancient american civilization Mayw Monuments, Temples and the Retum ef nfr Equina Sam Serpent Three civilizations Maya(2500BC-8th century Aztec Inca疾病 对文明进程的影响-美洲文明 Ancient American civilization Three civilizations Maya （2500BC-8 th century） Aztec Inca