Ah, that's because the grade boundaries shift each series to account for paper difficulty—a higher percentage needed if the exam was easier, you see? But I must disagree that this is merely a statistical fairness; for us aiming for Cambridge or the Ivy League, even a few marks' shift feels like the ground moving underfoot. I know this tension well, checking and re-checking those thresholds with my son, who calmly explains the statistics while I fret—for us, every single percent carries the weight of a dream, hai ta?
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