56 牙釉質的諾式硬度(Knoop hardness)介於下列那兩種修復材料之間?
①牙科陶瓷 ②鎳鉻合金(Ni-Cr alloy) ③金箔 ④磷酸鋅黏著劑(zinc phosphate cement)
⑤丙烯酸樹脂(acrylic resin for denture base)
(A)①②
(B)②③
(C)③④
(D)④⑤
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統計: A(250), B(261), C(34), D(24), E(0) #883385
統計: A(250), B(261), C(34), D(24), E(0) #883385