Loading & Unloading第 4 / 80 题
When approaching a bus stop, you should activate your alternately flashing amber (yellow) warning lights:
a.Only after the bus has fully stopped
b.Just as the door opens
c.Only if students are already at the roadside
d.At least 100 to 300 feet before the stop, per state law
解析
Amber warning lights should be turned on at least 100 to 300 feet before the stop, depending on your state's law and speed. These lights warn following traffic that you are about to stop. The red flashing lights and stop arm are then activated when the bus is stopped and loading or unloading.
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