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【单选题】
AC代表交流还是直流?A.
直流
B.
交流
C.
交流、直流都可以
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】听力原文：W: How was the job interview? I think you make a good journalist. I remember you as the best writer of the class. M: Well, in fact, my application was turned down. They were looking for people wi...
A.
He doesn' t write well enough.
B.
He hash' t got any professional experience.
C.
He is not a professional writer.
D.
He didn't perform. well in the interview.
【简答题】按优先级由高到低的顺序写出常用的运算符为 。