嗯呐我太笨，老想著用貿易綜合做分母。。。

來源: slow_quick 於 2025-03-19 20:42:05 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

工程師想法，這樣搞不容易出現分母為零的現象

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