单选题 · 选择一个答案
If there are one or more yellow flashing lights at traffic signals, what does it mean?
路口交通信号灯出现一盏或多盏闪烁黄灯时，表示什么？
Flashing yellow signals mean the signals are not operating normally: proceed cautiously under the applicable give-way rules.
路口闪黄灯表示信号不正常工作，应依适用的让行规则谨慎通行。
阅读相关知识
Check every direction. Apply turning and T-intersection rules before the give-way-to-the-right rule where relevant; stop if necessary.
观察全部方向，先应用转弯让直行、T字路口等具体规则，再在其他适用情形让右侧来车；必要时停车。