错！$400-$350=$50, 同理ML50，真能将单位丢失。小学算术问题！

来源: W050404 于 2014-07-25 08:57:37 [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.