其实这些改造成本不高，关键是理念和政策支持。我斗胆估计，未来20年有大改观。

来源: 低头的谷穗11 于 2013-10-21 18:36:26 [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.