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【单选题】
在纯电感电路中,下式中正确的为_______。A.
U=LXL
B.
U=IXL
C.
U=jLXL
D.
U=jIXL
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举一反三
【单选题】Tsui attended Yale University, where he was a member of Davenport College and The Duke's Men of Yale, an all-male a cappella group. He also majored in ______ at Yale University.
A.
Classical Music
B.
Classical Greek
C.
Computer Programming
D.
Finance
【简答题】Yale is composed of______ colleges.
【简答题】Yale University is named after Elihu Yale, who once worked for EIC as ______.
【简答题】All urgent matters have now been ______. A) attended B) attended to C) attended at D) to attend
【单选题】在亲核取代反应中，下列哪个实验现象属于S N 1机理：( )。
A.
产物构型完全转化；
B.
反应只有一步；
C.
有重排产物；
D.
亲核试剂亲核性越强，反应速率越快
【单选题】We didn't see Tom at the meeting yesterday. He ________it. A. mustn't have attended B. cannot have attended C. needn't have attended D. would have not attended
A.
mustn't have attended
B.
cannot have attended
C.
needn't have attended
D.
would have not attended
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【简答题】All urgent matters have now been ______. A) attended B) attended to C) attended at D) to attend
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