摘 要: | Nowadaysmanypeople,evensomemiddleschoolstudents,smokecigarettes.Theythinksmokingdoeslittleharmtoyoungpeople.Andtheyeventakeitasafashionoftheday.Infact,smokingdoesgreatharmtopeople,nomatterwhethertheyareoldoryoung.Itcanmakeyourheartbeatfasterandshootyourbloodpressureup.Itcanalsoreplaceoxygeninyourbloodwithcarbonmonox-ide(一氧化碳)andleavecancer-causingchemicalstospreadinyourbody.Allthishappenswitheverycigaretteyousmoke.Accordingtoasurvey,ninety-fivepercentofthosewhosufferfrombronchitis(支气管…
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