Video PlayerClose
BEIJING, May 26 (Xinhua) -- Chinese President Xi Jinping sent a congratulatory letter to the China International Big Data Industry Expo 2019, which opened in the city of Guiyang, southwest China's Guizhou Province, on Sunday.
BEIJING, May 26 (Xinhua) -- Chinese President Xi Jinping sent a congratulatory letter to the China International Big Data Industry Expo 2019, which opened in the city of Guiyang, southwest China's Guizhou Province, on Sunday.