https://cn.vogon.today/%e7%b6%93%e6%bf%9f%e6%83%85%e6%99%af/1950-2020%e5%b9%b4%e4%b8%bb%e8%a6%81%e9%a3%9f%e5%93%81%e7%89%b9%e8%a8%b1%e7%b6%93%e7%87%9f%e7%9a%84%e6%ad%b7%e5%8f%b2/
1950-2020年主要食品特許經營的歷史