回複：求教：小學5年級算數題目求證

來源: 於 2009-09-12 15:34:07 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

if this is too hard, then your kids should not look
for come careers which need to use math. My son could do
this in his first grade.