39. 如右圖所示之開路殘段匹配電路，所需之兩條傳輸線長度為 (0.147λ, 0.044λ)，若將該條開路殘段傳輸線使用短路殘段傳輸線取代，則所需之兩條傳輸線長度變為何？ (A) (0.147λ,0.044λ) (B) (0.397λ,0.044λ) (C) (0.147λ,0.294λ) (D) (0.397λ,0.294λ)