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我理解楼主送孩子在补习学校测试,但学校用的不是AOPS教材,否则4年级的孩子不可能直接去学AOPS中级课程。

househot (花开花落)
(#13066976@0)
7-6 -04:00
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Back To Topic: 不是BSO,诚心问一下暑假有必要补优吗

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