本题目来源于试卷: Physics Unit29: Molecules and Solids，类别为 Generic Physics
[单选题]
In a p-type semiconductor, a h/vz 8 n48bayvwc d2t/ ynji*vqa2 baa47iwodb25t76c0pui )eole is
A. a donor atom.
B. an extra electron supplied by a donor atom.
C. a missing atom in the crystalline structure.
D. a region where an electron is missing.
参考答案: D
本题详细解析:
暂无
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Post time 2024-1-14 18:37:39