美國是科技強國。可美國NSF調研發現，幾乎一半美國公民不知道地球太陽哪個饒哪個轉。。。

來源: zhiyanle 於 2024-10-08 13:14:21 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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