建议孩子泡AOPS网站，那里会有很多志同道合的小朋友。

来源: BeLe 于 2018-12-21 10:06:19 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.

Change Ad Consent