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並前往 https://www.khanacademy.org/humanities/whp-1750/xcabef9ed3fc7da7b:unit-3-industrialization/xcabef9ed3fc7da7b:3-1-origins-of-the-industrial-revolution/a/read-the-scientific-revolution-beta
是否確定要離開?
確定! 回上一頁