participated activities can freely obtain 90-day Artificial Intelligence Chess Learning Cards. Date: December 31st 18:00-19:30 Location: Hongde Road 228 Hongyilou 11th Floor 306 Room Activity Form: Household-based Task completion will bring rewards. Award Setting: First Prize: Free enrollment in winter break class Second Prize: Remote control plane set (Barbie set) Third Prize: High-quality chess equipment One-time Award: 90-day Artificial Intelligence Learning Card People can participate in the activity to receive a free gift. Scan code to join the group