78.有關局部塗氟的氟化物,下列何者pH值最低?
(A)8% stannous fluoride
(B)1.23% acidulated phosphate fluoride(APF)
(C)2% sodium fluoride
(D)5% monofluorophosphate
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統計: A(957), B(585), C(140), D(154), E(0) #1741927
統計: A(957), B(585), C(140), D(154), E(0) #1741927