單選題 · 選擇一個答案
Which answer gives the most complete range of flashing warning-light colours used by pilot vehicles, including the first pilot for a very large load?
包括為超大型貨物護送的首輛引導車在內，哪個答案最完整地列出了引導車使用的閃爍警示燈顏色範圍？
Pilot vehicle warning lamps may be amber, or amber and purple.
引導車使用的閃燈可以是黃色，或黃色與紫色的組合。
閱讀相關知識
Not every pilot has both colours. Slow, observe and follow safe directions around overdimension transport.
不同引導安排的燈光不同，不能認為每輛引導車都必須同時閃黃紫燈；遇到超尺寸運輸應減速觀察並按現場安全指示行動。