如果网速较慢,请耐心等待1分钟,以显示视频。本视频韶关学院不拥有版权,转载自网易开放课堂,如需转载请标明出处:网易开放课堂。第9讲 绿色革命的前景9. From Ancient to Modern Farming: The Green Revolution and the Prospect of Feeding the World