这个标志表示什么？

500. 这个标志表示什么？

单选题正确率: 99%

A. 前方有环形交叉路口 B. 前方有回收站 C. 前方有双向交通 D. 前方有汇入交通流

恭喜，答对了！ {{vm.result.explain}}

答案不正确！ {{vm.result.explain}}

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