34.下列何者在藻膠印模材中重量比最高?
(A)藻酸鉀(potassium alginate)
(B)藻酸鈉(sodium alginate)
(C)硫酸鈣(calcium sulfate dihydrate)
(D)矽藻土(diatomaceous earth)
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統計: A(67), B(122), C(68), D(1106), E(0) #3199772
統計: A(67), B(122), C(68), D(1106), E(0) #3199772