Toán Lớp 8: Phân tử là
A. Br2; Cl2. B. NaCl, Ca. C. Br, HBr. D. CO, S.
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Toán Lớp 8: Phân tử là
A. Br2; Cl2. B. NaCl, Ca. C. Br, HBr. D. CO, S.
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