39.下列何種器械適用於複合樹脂填補的凹面(concave surface)完成(finishing)?①flexible discs
②finishing strips ③finishing cups ④finishing points
(A)①②
(B)③④
(C)①③
(D)②④
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統計: A(36), B(698), C(156), D(40), E(0) #3198137
統計: A(36), B(698), C(156), D(40), E(0) #3198137