题目内容

在布里渊区边界上,近自由电子的能带一般会出现().

A. 满带
B. 允带
C. 半满带
D. 禁带

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更多问题

电子能带的表示方式有?

A. 扩展区图
B. 简约区图
C. 周期区图

The little girl had a lot of _____ to do every day.

A. houseworks
B. homeworks
C. works
D. jobs

Some ____ are waiting for you outside.

A. German
B. American
C. grown-up
D. Japanese

There are two ____in my class.

A. Henrys
B. Henry's
C. Henry
D. Henries

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