LOCATED in a high and cold region,Huma County in northeastChina's Greater Khingan Mountainshad been considered not suitable forbreeding bees. During the GreatCultural Revolution, the people...
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LOCATED in a high and cold region,Huma County in northeastChina's Greater Khingan Mountainshad been considered not suitable forbreeding bees. During the GreatCultural Revolution, the people...