29.下列材料之熱傳導性(thermal conductivity)何者最小?
(A)牙本質(dentin)
(B)牙釉質(enamel)
(C)純金(pure gold)
(D)汞齊(amalgam)
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統計: A(1078), B(250), C(31), D(42), E(0) #1032924
統計: A(1078), B(250), C(31), D(42), E(0) #1032924