我们家是把书上题全做了，课本自己看过，光靠上课教的和课上作业根本不行，intro可以4-6年级学完，几何对小学生难了一点

来源: lionhill 于 2025-01-07 19:12:02 [旧帖] [给我悄悄话] 本文已被阅读：次

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