合流改道理论上是存在的，在地貌学上叫河流袭夺。

来源: laoqianshui 于 2011-05-31 13:46:21 [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.