“航空” all private firms “铁道部高铁” gov. monoplay

来源: 于 2012-06-23 16:44:34 [旧帖] [给我悄悄话] 本文已被阅读：次

“航空” price determined by supply-deman; “铁道部的高铁” determined by the head of 铁道部