你已到达一个设有停车标志的平交道口。什么情况下你可以继续前行？

221. 你已到达一个设有停车标志的平交道口。什么情况下你可以继续前行？

单选题正确率: 81%

A. 当前方道路畅通时 B. 在完全停下之后 C. 当你确定没有列车驶来时 D. 当上述所有条件都满足时

恭喜，答对了！ {{vm.result.explain}}

答案不正确！ {{vm.result.explain}}

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