- 问题详情:Arecentreportsuggestedthatanaveragepersoncheckshisorhercellphone150timesaday.36Theymaynotknowusingtheircellphonesmayputthemselvesortheirlovedonesindanger.37Atleast200,000caraccidentswerecausedbytextingmessages.38AsurveydonebythePewInstitutesu...
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