當年複課鬧革命後，上《農業基礎知識》課，學習了發展農業八字憲法：“土肥水種密保管工！”

來源: tomcat801 於 2020-12-26 12:27:42 [舊帖] [給我悄悄話] 本文已被閱讀：次

下鄉時實踐了好幾年！

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