80.臨床上以acidulated phosphate fluoride(APF)局部塗氟之最適濃度為:
(A)0.123%
(B)1.23%
(C)12.3%
(D)20%
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統計: A(67), B(844), C(92), D(8), E(0) #1035917
統計: A(67), B(844), C(92), D(8), E(0) #1035917