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A—Don’t follow too closely B—Keep distance C—Accident area D—Road closed E—Road work ahead F—Two-way traffic G—One-way traffic H—Bend ahead I—Bus lane J—Electronic toll collection(ETC) K—Service area L—No passing M—No parking N—Dead end O—No horn P—Falling rocks Q—slow down at exit Examples: (Q) 出口慢行 (M) 禁止泊车 1. ( ) 单行驶向 2 ( )事故多发区 3. ( ) 电子收费 4 ( )小心岩石滑落 5. ( ) 前方转弯 6 ( )服务区 7. ( ) 保持车距 8 ( )公交车专用车道 9. ( ) 禁止鸣号 10 ( )前方道路封闭