你说说有万分之几的科学事实不是科学家发现的？

来源: SwiperTheFox 于 2020-11-10 13:53:06 [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.