Editor's note: Dried meat 8 arrive, the Spring Festival is close, but epidemic situation is prevented accuse a situation still austere, the input is prevented outside, inside prevent rebound, everybody is him health person of the first responsibility, here, we initiate:
Manufacture: Ministry of career of bright net popular science
Plan: Zhan Zhao, Xiao Chunfang
Make: Cai Lin, Zhang Mengfan
Origin: Bright net