多选题 · 可选多项
When following a vehicle on a dusty metal (gravel) road, what should you do? Check all that apply.
如果在土路上行驶的时候前方有车，你该怎么做？选择所有正确的
Keep well back from dust on a gravel road and use dipped headlights when visibility falls.
在碎石路跟车应拉开距离避开尘云，视线变差时开近光。
阅读相关知识
A wave from the driver ahead does not guarantee passing safety. Check visibility, space and rules; do not occupy the road centre and obstruct opposing traffic.
不要把前车挥手当作超车安全保证；只有满足视距、空间和规则时才可超车。保持正确道路位置，不占据中间妨碍对向交通。