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nguyensivietqaz
2 năm trước
Câu 3: Hiện tượng nào sau đây sẽ không xảy ra khi làm nóng không khí? A. Khối lượng không khí không thay đổi. B. Khối lượng riêng không khí giảm. C. Thể tích không khí giảm. D. Cả A, B, C đểu sai.
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