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A.一些远离海岸的大洋中部分水域已检测到羟苯甲酮，但浓度较低
B.羟苯甲酮易引起皮肤过敏，长期使用会影响人体免疫力和生殖能力
C.羟苯甲酮会破坏、改变珊瑚的DNA，降低幼年珊瑚正常发育的几率
D.人们在很多场合都使用防晒霜，仅在海滨浴场限制使用效果有限
答案
更多“羟苯甲酮是一种常见的紫外线吸收剂，多用于防晒护肤品中，全球3500种品牌的防晒霜中均含有该物质，研究表明，即使是极低浓度的羟苯甲酮，也会给珊瑚带来致命的伤害，有专家指出，为了保护珊瑚，在海滨浴场应该禁…”相关的问题
第4题
第6题
A.叔丁基格氏试剂与苯甲腈的加成及水解
B.苯甲醇用高锰酸钾氧化
C.苯甲酸乙酯用等当量二异丁基氢化铝还原
D.1,2-二苯乙烯的臭氧化反应及锌粉还原
第7题
Alcoholism
1. Yes, alcoholism can be treated. Alcoholism treatment programs use both counseling and medi-cation（药物治疗）to help a person stop drinking. Most alcoholics need help to recover from their dis-ease. With support and treatment, many people are able to stop drinking and rebuild their lives.
2．A range of medication is used to treat alcoholism. Benzodiazepines（苯二氮平类药物）are some-times used during the first days after a person stops drinking to help him or her safely withdraw fromalcoh01.However,these medications are not used beyond the first few days because they may be high—ly addictive.Other medications help people remain sober（清醒）.One medication used for this purposeis naltrexone（环丙甲羟二羟吗啡酮）．When combined with counseling，naltrexone can reduce the strong desire for alcohol and help prevent a person from returnmg to heaVy drinking.Another medica—tion,disulfiram（戒酒硫）,discourages drinking by making the person feel sick if he or she drinks al—coh01-Though several medications help treat alcoholism,there is no“magic bullet”.DeVeloping new and more effective medications to treat alcoholism remains a high priority for researchers.
3.Alcoholism treatment works for many people.But just like any chronic disease,there are different leV—els of success in treatment.sOme people stop drinking and remain sober.Others cannot stop drinking for anylength of time.With treatment,one thing is clear,howeVer,the longer a person stops drinking alcohol'the rnore likely he or she wiU be able to stay sober.
4.No,alcoholism cannot be cured at this time.Even if an alcoholic hasn't been drinking for a longtime,he or she can stiU return to the drinking habit.To guard against it,an alcoholic must continue to avoid all alcoholic drinks.
Paragraph l____
A.what medications treat alcoholism？
B.what are drinking probiems？
C.can alcoholism be cured？
D.does alcoholism be cured？
E.what is alcoholism？
F.can alcoholism be treated？
