除了确认从路缘线驶出进入车流是安全的之外，你应提前多久打转向灯？

391. 除了确认从路缘线驶出进入车流是安全的之外，你应提前多久打转向灯？

单选题正确率: 91%

A. 1秒 B. 2秒 C. 3秒 D. 4秒

恭喜，答对了！ {{vm.result.explain}}

答案不正确！ {{vm.result.explain}}

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