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【简答题】
在N型半导体中,多数载流子是( ),少数载流子是( )。少数载流子是自由电子的半导体称为( ) 。 晶体二极管最重要的特性是( )。
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皮皮学刷刷变学霸
举一反三
【单选题】I like sports,__________ running,swimming and playing football. [ ]
A.
for example
B.
example
C.
likes
D.
such as
【简答题】( ) 4. Running, swimming and playing football can help you to do better at school.
【判断题】Running ,swimming and playing football can help you to do better at school .
A.
正确
B.
错误
【单选题】What are the woman's favorite sports?
A.
Swimming and playing football.
B.
Running and playing volleyball.
C.
Playing table tennis and basketball.
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