- 问题详情:EvenasGoogleplanstotestitsfleet(车队)ofself﹣drivingcarsonpublicroadsthissummer,itsbusinessmodelremainsabitofamystery.By2025,asmanyas250,000self﹣drivingvehiclescouldbesoldeachyearglobally,accordingtoastudybyanindustryresearchfirm."Vehiclesthatcantakean...
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