問題詳情

34.調整alginate印模材的flexibility為soft-set或hard-set是以改變何種成份的含量而定？
(A)Organic glycols
(B)Diatomaceous earth or silicate powder
(C)Sodium phosphates
(D)Calcium sulfate dihydrate

參考答案

答案：B
難度：簡單0.725
統計：A(0),B(29),C(9),D(2),E(0)