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• Accordingtotheauthor，teenagere
• Accordingtotheauthor，teenagere
• Comparedwithparentsof30yearsag
• Comparedwithparentsof30yearsag
• Thestudyshowsthatteenagersdon’
• Thestudyshowsthatteenagersdon’
• 根据下列内容，回答201-205题。Theevidencef
• 根据下列内容，回答201-205题。Theevidencef
• Accordingtothelastparagraph，th
• Accordingtothelastparagraph，th