人家说其实只要有小学三年级的数学水平,在生活中就够用了

来源: SPI 于 2009-01-06 23:42:50 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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