路边的反光三角牌是什么意思？

333. 路边的反光三角牌是什么意思？

单选题正确率: 89%

A. 前方有车辆故障或事故 B. 前方有道路施工 C. 前方有失灵的交通信号灯 D. 前方有交叉路口

恭喜，答对了！ {{vm.result.explain}}

答案不正确！ {{vm.result.explain}}

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