寫的什麽東西啊，好大一個題目，內容是摸石頭過河。考證出自50年前。數學也沒算清楚。

來源: 美元於 2014-01-15 19:29:50 [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.