Horticultural knowledge contest promotes Yanqing Int'l Expo 2019(2)
Horticultural knowledge contest promotes Yanqing Int'l Expo 2019 Beijing University of Agriculture wins the top title in a horticultural knowledge contest among universities in Beijing. [Photo courtesy of the organizing committee of the contest]
Source:Guo Xiaohong Editor:Lucky
(Source_title:Horticultural knowledge contest promotes Yanqing Int'l Expo 2019)