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【单选题】
What is a DJ in music?A.
A DJ, meaning dumb jerk, is a stupid person who treats others badly.
B.
A DJ, meaning door bell, is a button you can press that rings a chime inside someone ’ s house to let them know you are outside their door.
C.
A DJ, meaning disc jockey, is someone who chooses which music to play on the radio or at a club or party.
D.
DJ, meaning deer jerky, is a type of dried meat made from deer.
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【简答题】以 As 掺入 Ge 中为例,说明什么是施主杂质、施主杂质电离过程和 n 型半导体。
【单选题】《坛经》载:“时有风吹幡动。一僧曰风动,一僧曰幡动,议论不已。慧能进曰,不是风动,不是幡动,仁者心动。”慧能的观点( ) 1是唯物主义观点 2是唯心主义观点 3割裂了物质与运动的辩证关系 4是离开物质谈运动的观点
A.
①②③
B.
②③④
C.
①②④
D.
①②③④
【简答题】以As作为杂质元素掺入本征半导体Ge中为例,说明什么是施主杂质、施主杂质电离过程和n型半导体。