COOL

来源: writeinwater 于 2011-10-16 10:03:33 [旧帖] [给我悄悄话] 本文已被阅读：次

He already started teaching himself number theory in middle school. He deserves this result.

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