自行車、汽車、飛機、火車，輪船，有多少是用聯邦政府“基礎研究”項目、用納稅人的錢搞出來的？

來源: 精木於 2025-04-19 14:36:29 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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