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【简答题】
一台三相变压器,额定电压U1N/U2N=10/3.15 kV,额定电流I1N/I2N=57.74/183.3 A,求该变压器的额定容量。
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举一反三
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A.
Actra
B.
Cc
C.
Ns
D.
Cidens
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A.
20-22
B.
22-24
C.
24-26
D.
26-28
【简答题】强制性国家标准代号为(),推荐性国家标准代号为()。
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【单选题】下列云属中属于高云族的是()
A.
积云
B.
高积云
C.
层积云
D.
卷积云
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A.
正确
B.
错误
【简答题】______ 3,000 words, I also learned how to use basic grammar after being trained here. A.Except for B.Apart from C.According to D.Instead of
【单选题】下列云类中属于中云的有是().
A.
St
B.
Cc
C.
Asop
D.
Scop
【简答题】用方框里面的词完成下面的一封邮件。 Feb.8th, 2009 Dear Cathy, We had computer lessons today. We have never gone 1.________ before. The teacher told us how to use the Internet. I found a very good 2.__________, Google. ...
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