其实伽利略在比萨斜塔做物理实验一事纯粹是编出来了。

来源: 白云蓝天于 2016-10-05 11:18:06 [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.