嗯，這種有真材實料的科普在現在民科泛濫的大環境中，確實比較罕見。

來源: 惡俗老狼於 2016-08-03 20:04:15 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.