NowadaysoneoftheseriousproblemsChinaisfacedwithis_______存在的问题.Accordingtoasurvey,_______调查结果.Therefore,itisclearthat_______存在的问题hasbeengettingmoreandmoreserious.
Take_______举例对象forexample.Toaccountforthephenomenon,peoplehavecomeupwithvariouscausesaslistedbelow.Ontheonehand,_______原因一.Ontheotherhand,_______原因二.
Thereisnodoubttheissuehasexertedharmfuleffectson_______问题的影响以及后果.Therefore,somemeasuresshouldbetakentoputanendtothisproblem.Tobeginwith,_______措施一.Inaddition,_______措施二.Onlythroughthesemeasurescanwehopetosolvetheproblem.