单项选择题A.B.C.D.
单项选择题A.1.990Ω,1.583Ω,1.655ΩB.0.026Ω,0.035Ω,0.168ΩC.0.850Ω,1.140Ω,5.480ΩD.0.213Ω,0.284Ω,1.370Ω