【单选题】Thousands of empty jugs move down a conveyor belt at Colgate-Palmolive before stopping to be filled and moving on to be labeled. What type of layout is utilized?
【单选题】听力原文:(A) The boxes are on a conveyor belt. (B) Workers are taping the boxes. (C) Workers are moving goods. (D) The boxes are stacked in the corner of the room.