在什么情况下你必须使用转向灯？

378. 在什么情况下你必须使用转向灯？

单选题正确率: 91%

A. 在你转弯或变换车道之前 B. 在你进入或离开一个公园之前 C. 当你在环形交叉口转弯时 D. 以上所有情况

恭喜，答对了！ {{vm.result.explain}}

答案不正确！ {{vm.result.explain}}

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