希望AOPS搞一個有償的tutor服務。現在必須買它的課,才能有tutor幫助解題。
所有跟帖:
• 他的課裏tutor基本上都是他家注冊的老師,我覺得這個time shared -Pilsung- ♂ (137 bytes) () 06/18/2024 postreply 16:32:59
• 他的課裏tutor基本上都是他家注冊的老師,我覺得這個time shared -Pilsung- ♂ (137 bytes) () 06/18/2024 postreply 16:32:59
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