8. 試問下面的圖片,該種鐵路轉轍器的正確名稱? (A)三岔轉轍器 (Three-Throw Point) (B)菱形交叉 (Diamond Crossing) (C)雙K型交叉 (Double K Type Crossing) (D)單K型交叉 (Single K Type Crossing)