digital currency exchange provider, Knowledge

4 days and 3 boards: Wenfeng Group.The first board: University of Technology Yake, Rongji Software, Fudan Fuhua, Join-Cheer Software.7 days and 6 boards: Shanzi Hi-Tech.

9 board: Thiel shares.5 days and 4 boards: Ningbo Jingda.

3 days and 2 boards: Fuda shares.10 days and 9 boards: Rishang Group.Third, artificial intelligence