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Wikidata

https://www.wikidata.org/wiki/Q190667

Make use of scientific theories to raise the standards of production

Make use of scientific theories to raise the standards of production (1960, March )

Skillfully arranging the beautiful farmland

Skillfully arranging the beautiful farmland (1979, July)

Study hard, make progress every day

Study hard, make progress every day (1979, September)

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