⚠ Data Quality Notes
- 47 questions have placeholder distractor options (e.g. “sin θ”, “cos θ”, “1”) — mostly DSE13 centre-radius, DSE10 equation/intersection, P6 symmetry & stats misuse
- 102 of 105 trap_analysis_zh entries use generic English text (“Common computation error”) instead of real Chinese translations
Showing 105 of 105 questions