Bản chất quá trình truyền âm là quá trình truyền dao động qua các hạt vật chất trong môi trường, âm truyền trong chất rắn nhanh nhất vì A. các hạt sắp xếp có trật tự nhất. B. có nhiều hạt vật chất nhất. C. khoảng cách giữa các hạt là nhỏ nhất. D. các hạt sắp xếp đều nhau nhất.

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