在减速停车前，你需要提前示意多长时间？

415. 在减速停车前，你需要提前示意多长时间？

单选题正确率: 97%

A. 至少两秒 B. 至少一秒 C. 至少三秒 D. 只要你认为安全即可

恭喜，答对了！ {{vm.result.explain}}

答案不正确！ {{vm.result.explain}}

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