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🏆 競賽專用: 奧數難度,高手過招。
🧠 拓五形式: 深度延伸,靈活多變。
👨🏫 名師編著: 潘小云著,掌握精髓。
📈 資優特訓: 挑戰極限,錄取名校。
全館滿599免運 on order
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🏆 本書三大奧林匹克特色: