早上起来，女儿说今天是π day. 然后逛子坛，有人说，MIT今天发榜时间是9：26，就是3.1415926. 有意思哈。

来源: 沙城于 2015-03-14 10:26:25 [旧帖] [给我悄悄话] 本文已被阅读：次

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