Wei Lingling, research fellow at the Institute of Environment and Sustainable Development in Agriculture of the Chinese Academy of Agricultural Sciences (CAAS) and director of the Key Laboratory of Leisure Agriculture under the Ministry of Agriculture, answers questions during a group interview on innovation in agricultural science and technology held by the press center of the 19th National Congress of the Communist Party of China (CPC), in Beijing, capital of China, Oct. 21, 2017. (Xinhua/Li Xin)