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@zzzcr
China, Ningbo
Joined Jan 2023
World Rank: #16432 (2 points)
Institution: Ningbo No.7 Middle School
Activity over the last year
Effectiveness
- Problems solved
- 33
- Solutions submitted
- 85
China, Ningbo
Joined Jan 2023
World Rank: #16432 (2 points)
Institution: Ningbo No.7 Middle School