59.判斷下列訊號何者為能量訊號?
(A) x(0=Ae_atu(0
(B) x(0=Au(0
(C) %(t)=smt+2cost
(D) x(t)=Acos((Oot)

答案:登入後查看
統計: A(6), B(1), C(7), D(4), E(0) #977285