二端网络（或单口网络）是指具有两个引出端钮的电路。
查看答案
戴维南定理的内容是：任何一个含独立源的线性二端网络，对其外电路而言，可以用一个电压源和电阻的串联组合来等效置换。
A. 对
B. 错
what happened to the earth?Lots of ____ are ___.
What happened to the earth?Many ___ things are ___.
What happened to the earthMore and more ___ rain ___ the cities.
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