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1. Beekeeping in the tulip-tree region (id:5420607)

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2. Beekeeping in the buckwheat region (id:5420595)

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3. Beekeeping in the clover region (id:5420594)

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4. Wintering bees in cellars (id:ORC00000278)

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5. The preparation of bees for outdoor wintering (id:ORC00000277)

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6. Outdoor wintering of bees (id:5420778)

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7. The treatment of bee diseases (id:5420774)