63.目前認可最有效的牙菌斑控制和牙齦炎治療的漱口水，係因其中含有下列何種物質之故？
(A)Sanguinarine
(B)Stannous fluoride
(C)Chlorhexidine and essential oil
(D)Quaternary ammonium compounds

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統計： A(4), B(56), C(480), D(17), E(0) #1379521