回复：回复：同轴电缆- old but nice problem

当 n = 2, 必须用有极性的测量方式 (直流电压或电流)。
N = 1 ( A -> B)
当 n > 2 and n = 奇数时，N = 2 ( A -> B, B -> A)。

当 n > 2 and n = 偶数时，N = 3 ( A -> B, 排除一根，n 成奇数, B -> A, A -> B )。

所有跟帖： 

• 没太理解- some good thought but seems you are incorrect -guest007- ♀ (248 bytes) () 02/13/2010 postreply 18:29:55