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【单选题】
建立古典力学的“分析力学”体系的学者是:A.
牛顿
B.
拉格朗日
C.
欧拉
D.
莱布尼茨
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反馈参考答案：
举一反三
【单选题】What is the corresponding circuit if we add an independent voltage source u and find the port current i?
A.
a resistor
B.
an independent voltage source connecting in series with a resistor
C.
an independent voltage source
D.
an independent current source connnecting in series with a resistor
E.
an independent current source connnecting in parallel with a resistor
【简答题】什么叫互感电动势?
【单选题】I passed the test. I ________ it without your help
A.
wouldn’t pass
B.
wouldn’t have passed
C.
didn’t ‘t pass
D.
had not passed
【简答题】什么叫互感电动势？
【单选题】The circuit is shown in the figure, by the superposition Theorem we can find out that the current is I=______A. Choose A,B,C or D.
A.
-0.5A
B.
-2/3A
C.
4/3A
D.
1.5A
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