嗯，这是假说之一。具体机制还有待进一步研究。

来源: 加州流星于 2016-06-15 16:37:36 [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.