什么时候可以使用中线缓冲带？请勾选所有适用的选项。

172. 什么时候可以使用中线缓冲带？请勾选所有适用的选项。

多选题正确率: 64%

A. 用于超越一辆较慢的车辆 B. 用于在装卸货物时停车 C. 用于减速并等待，以便从道路上右转 D. 用于等待，以便在右转后进入车流中的空隙

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