拖挂拖车时你会使用什么规则？

294. 拖挂拖车时你会使用什么规则？

单选题正确率: 86%

A. 两秒规则 B. 四秒规则 C. 节奏制动规则 D. 让左侧车辆先行

恭喜，答对了！ {{vm.result.explain}}

答案不正确！ {{vm.result.explain}}

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