歸於O。平均。這是兩個關鍵點。怎麽平均？怎麽歸O？

來源: stonebench 於 2015-09-10 12:12:03 [舊帖] [給我悄悄話] 本文已被閱讀：次

平均後的歸O真的是全部歸O嗎？

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.