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【多选题】
关于支路电流法下面论述正确的是A.
支路电流法未知量为未知的支路电流
B.
需要的方程个数等于未知的支路电流个数
C.
支路电流法列方程的时候，如果有n个结点，可以列出ｎ－１个独立的结点电流方程
D.
电路中有恒流源的时候，该支路的支路电流为已知，可以少列一个支路电流方程
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