試卷名稱:105年 - 105 台灣聯合大學系統_學士班轉學生考試試題:普通化學#124918
年份:105年
科目:轉學考-普通化學
31. A material is made from Al, Ga, and As. The mole fractions of these elements are 0.25, 0.26, and 0.49, respectively. This material would be
(A) a metallic conductor because Al is present
(B) an insulator
(C) a p-type semiconductor
(D) an n-type semiconductor
(E) none of these