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【单选题】
在纯净半导体中掺入微量三价元素形成的是( )型半导体。A.
P
B.
N
C.
Si
D.
空穴导电
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反馈参考答案：
举一反三
【简答题】The Chinese food in the United States is usually
______ for American people.A. exchanged B. alternated C. modified D. cooked
【单选题】The Chinese food in the United State is usually______ for American people.
A.
exchanged
B.
alternated
C.
modified
D.
cooked
【简答题】白族平坝住房多为瓦房,布局一般多为( )。
【单选题】The Chinese food in the United States is usually ______ for American people.
A.
exchanged
B.
alternated
C.
modified
D.
cooked
参考解析：
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