我隻是覺得你所說的一切中學物理足以解釋一切。不妨說說你是怎樣用微積分解釋兩車對撞的。

來源: 周老大於 2015-11-01 07:11:53 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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