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【判断题】
无功功率的概念可以理解为这部分功率在电路中不起任何作用A.
正确
B.
错误
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举一反三
【简答题】5-3 ,预习教材85页内容,试回答“光滑度处于漫反射与镜面反射中间值的材质有哪些?”
【单选题】The library in _____ was the first private library in the US.
A.
Harvard College
B.
Yale College
C.
College of New Jersey
D.
Massachusetts Institute of Technology
【简答题】线程在临界段中执行 wait() 方法的作用是 _________________ 。
【简答题】The library in the school isn't large. There are only ______ books in it. A) six thousand, five hundred and forty-one B) six thousands and five hundreds and forty-one C) six thousands, five hundred fo...
【单选题】“Must I return the book to the library in a week?”“No, you.”()
A.
couldn’t
B.
mustn’t
C.
needn’t
D.
won’t
【简答题】将听力音频内容的文本写出来或录成音频
【简答题】Write a letter of about 100 words to the director of the library in your university, giving some advice on how to improve the library service. You should include the details you think necessary. You s...
【单选题】You are to return the book to the library in two weeks. [ ]
A.
supposed
B.
want
C.
shouted
D.
thought
【单选题】You are _____ to return the book to the library in two weeks. [ ]
A.
supposed
B.
want
C.
should
D.
thought
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