- 問題詳情:PeopleinseveralAmericanstatesmaybesurprisedtoseecarsoncitystreetswithoutadriver.ExperimentaldriverlessvehiclesnowarelegalinFlorida,NevadaandCalifornia.Theyarepointingthewaytoafuturethatisnotfardowntheroad.Thehigh-techcompanyGooglehasanumberof...
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