第一个是真事．后来他老人家给我们讲，标准答案是负十伏，女生答案是正十伏，只扣一分，符号错了。

来源: wingreen 于 2024-09-17 14:49:42 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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