你多虑了，人家是要进USAMO的，数学就是凑学分的，根本不是个问题

来源: keessa 于 2016-03-03 10:43:23 [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.