中文字幕无码久久人妻_中国无码a一级刺激片_国产综合色产在线观看_色多黄片资源2020

Robots introduced into extracurricular educational programs in Hebei

Source:Xinhua| 2018-04-10 20:43:04|Editor: Mengjie
Video PlayerClose

CHINA-HEBEI-EDUCATION-ROBOTS (CN)

Students practise robot assembling at a primary school in Laoting County, north China's Hebei Province, April 10, 2018. Robots are introduced into the extracurricular educational programs in the school. (Xinhua/Mu Yu)

   1 2 3 4 Next  

KEY WORDS: Robots
EXPLORE XINHUANET
010020070750000000000000011100001371009141