这类事发生了那么多次，美国也没有建立起防范这类事情再发生的机制。为什么？

来源: 炅龙于 2014-01-03 13:49:14 [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.