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dangduong14012006
2 năm trước
Câu1: Hãy nêu các công việc chăm sóc rừng sau khi trồng. Sau khi trồng rừng có rất nhiều cây chết là do những nguyên nhân nào? Câu 2: Vì sao một số loài vật như trâu , bò ,dê,.....ăn được rơm, cỏ? Câu 3: Nêu một số phương pháp chế biến và dự trữ thức ăn? Câu 4:Hãy nêu ưu và nhược điểm của một số phương pháp chọn giống vật nuôi? giúp mình nha!
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