视频国产精品,中文字幕大桥未久.,国产一区二区三区日本,色狠狠一区二区三区,亚洲国产精品欧美久久,亚洲另类春色综合婷婷,麻豆av影院

Students start online learning across China

Source: Xinhua| 2020-02-18 08:19:29|Editor: huaxia
CHINA-BEIJING-NCP-ONLINE CLASS (CN)

Hu Xiaoqian, a teacher of Tsinghua University, uses online educational system to teach a baseball class in Beijing, capital of China, Feb. 17, 2020. Millions of Chinese students started online learning on Monday, as the new school semester originally scheduled for Feb. 17 is currently postponed due to a nationwide epidemic control mechanism. (Xinhua/Shen Bohan)

   1 2 3 4 5 6 7 8 9 10 Next   >>|

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001387937971