几何对竞赛很重要，对将来学物理工程很重要。

来源: joytolearn 于 2021-06-02 04:46:21 [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.