从功利角度看，靠数竞爬藤是小概率事件，投入产出极低，绝大多数娃到不了AMO以上。修大学数学课反而成为圆娃的爬藤利器

来源: atongmujack 于 2025-07-22 10:44:28 [旧帖] [给我悄悄话] 本文已被阅读：次

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