9 pre cal, 10 cal BC, 11cal vari.本來打算猛推微積分課程後在考慮數競，現在看來行不通。

來源: 年輪於 2025-07-22 10:49:58 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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