Juvenile science festival held in Yinchuan, NW China's Ningxia

Source: Xinhua| 2019-09-21 21:36:02|Editor: Li Xia
Video PlayerClose

CHINA-NINGXIA-YINCHUAN-EDUCATION-JUVENILE SCIENCE FESTIVAL (CN)

Students attend an on-site lecture on robotics during a juvenile science festival in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Sept. 21, 2019. (Xinhua/Feng Kaihua)

   Prev 1 2 3 4 5 6 7 8 Next  

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001384109221
国产无码在线观看免费在线,37pao国产成视频,日韩一区二区视频在线,国产国产人免费人成免费视频麻豆
日韩精品一区二区三区在线视频放 | 亚州精品在线播放视频 | 中文字幕高清色婷婷视频网 | 亚洲第一成年男人网站 | 一本久久a久久免费不卡 | 在线视频制服丝袜中文字幕 |