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       Zebracrossings-thealternatingdarkandlightstripes...

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  • 问题详情：       Zebracrossings-thealternatingdarkandlightstripesontheroadsurface-aremeantt。reminddriversthatpedestriansmaybetryingtogetacross.Unfortunately,theyarenotveryeffective.A1998studydonebytheDepartmentofTrafficPlanningandEngineeringatS...
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