我保证可以出一道比这个简单得多的题，而肯定难到这个出题者。

来源: TZMAN 于 2010-03-19 11:21:33 [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.