共用题干 Smoking can Increase Depressive Symptoms in TeensWhile some teenagers may use cigarettes to "self-medicate"(自我治疗)against the blues(忧郁),sci- entists at the University of Toronto and the University of Montreal have found that smoking may actually ______________(51)depressive symptoms in some teens."This observational study is one of the few to examine the perceived ______________(52)benefits of smoking among teens,"says lead researcher Michael Chaiton,a research associate at the Ontario Tobacco Research Unit of the University of Toronto."_______________(53)cigarettes may appear to have self-medicating effects or to improve mood,in the long_______________(54)we found that teens who started to smoke reported higher depressive symptoms."As part of the study,some 662 high school teenagers completed up to 20 questionnaires about their useof cigarettes to ______________(55)mood.Secondary schools were selected to provide a mix of French andEnglish participants,urban and rural schools,and schools ______________(56)in high,moderate and low so-cioeconomic neighbourhoods.Participants were divided into three______________ (57):never smokers;smokers who did not use ciga-rettes to self-medicate,improve mood or physical______________ (58);smokers who used cigarettes to self-medicate.Depressive symptoms were measured using a scale that asked how often participants felt too tiredto do things;had______________ (59)going to sleep or staying asleep;felt unhappy,sad,or depressed;felt hopeless about the future;felt anxious or tense;and worried too much about things." Smokers who used cigarettes as mood______________( 60 ) had higher risks of elevated(提升)depres-sive symptoms______________ (61)teens who had never smoked,"says co-researcher Jennifer O'Loughlin,aprofessor at the University of Montreal Department of Social and Preventive Medicine."Our study found that teen smokers who reported emotional benefits from smoking are_______________(62)higher risk of developing depressive symptoms."The______________ (63)between depression and'smoking exists______________(64)among teens that usecigarettes to feel better."It's ______________(65)to emphasize that depressive symptom scores were higher among teenagers who reported emotional benefits from smoking after they began to smoke,"says Dr. Chaiton. _________(51)
A.diagnose B.increase C.examine D.treat正确答案B
