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 semiconducv3en(vt 070q)gj rltd; )/kms2bkeli (2tqbvtor, a hole 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
|