首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Brush your teeth right before you go to bed in the evening. B、Have as few of your teeth pulled out as possible. C、Have your te
A、Brush your teeth right before you go to bed in the evening. B、Have as few of your teeth pulled out as possible. C、Have your te
admin
2010-02-20
38
问题
How many teeth have you had filled in the past two years? If you follow the advice of Dr. Faustick ’you may be able to reduce the number of your visits to a dentist. Dr. Faustick conducted a twoyear survey to find out how to prevent or reduce dental decay. 946 students took part in an experiment. 523 students cleaned their teeth within ten minutes of eating when possible they used a tooth brush, when this was impossible they washed their mouth thoroughly with water. The remaining 423 students merely cleaned their teeth when they went to bed and when they got up in the morning. All the students had their teeth X rayed at the end of the first and second years. At the end of the first year, the night and morning group had three times as many decayed teeth as the dean after each meal group. At the end of the second year the latter group had 53 percent fewer decayed teeth than the former group. Dr. Fausstick has cleaned his teeth after meal for thirteen years and has not had a single decayed tooth. He pointed out that sugar is a major agent in dental decay. Particularly the sugar in sweets, cakes, and soft drinks. Ideally you should keep a tooth brush in your pocket and use it immediately after you have finished eating. When this is impractical you can at least make sure that you have a drink of water and let the water through your teeth to force out any particles of food. 7 of out 10 people loose at least half of their teeth by the time they are fifty. Many have a complete set of false teeth by that time. In any case neither toothache nor a visit to a dentist is very pleas ant. So it is worthwhile making an effort to keep you own teeth as long as possible. The main preventative agent is simply water.
选项
A、Brush your teeth right before you go to bed in the evening.
B、Have as few of your teeth pulled out as possible.
C、Have your teeth Xrayed at regular intervals.
D、Clean your teeth shortly after eating.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/Myt7777K
0
大学英语四级
相关试题推荐
_______________(另一方面),manypoorpeasantsarestilllivinginpovertyforshortageofthemeansofproduction.
Whenwetellothersinformation,wealsoexpressourfeelingsatthesametime.Adwritersalwaysuseboldorlargelettersin
AbattlehasbeengoingonoverwhogovernstheInternet,withAmericademandingtomaintainakeyroleinthenetworkithelped
HarlemRenaissancereferstoaperiodlastingformorethan10years,duringwhichagroupofAfricanandAmericanwritersprodu
A、Becausehewasacookatacountrymusicclub.B、Becauseheperformedforguestswhileheworkedasacook.C、Becauseheoften
A、Kirk.B、John.C、Jack.D、Tom.CWhomhastheauthorbeenlikenedtoovertheyears?此题考查听细节的能力。解题的关键是要抓住I’vealsobeenlikenedm
A、Tomisusuallytalkative.B、Tomhasaverybadtemper.C、Tomisdislikedbyhiscolleagues.D、Tomhasdozensofthingstoatte
A、Theycandobetterthanothers.B、Itisexpensivetohirelabor.C、Theydon’tliketobehelped.D、Theydon’ttrustothers.B
A、Shewouldlikesomesoup.B、She’sinvitingthemantolunch.C、Shewantstoknowifthemanlikeschicken.D、Sheatelunchear
A、Sueisaquietgirlnow.B、Suebecomesquitetalkative.C、Suehasbeentalkativeallthetime.D、Sueisusedtobeingtalkativ
随机试题
氨基酸能相互反应,通过形成一种叫做_______的化学键连接在一起。
《保护工业产权巴黎公约》规定的保护对象有()
男性,34岁。口渴、多尿、乏力2个月,1天前外出饮酒,饱餐后上述症状加重,伴恶心、频繁呕吐,继而神志恍惚,急诊入院。既往有乙型肝炎病史。入院查体:BP85/50mmHg,神志恍惚,皮肤黏膜干燥,心率104次/分,四肢发凉。该患者急诊应急处理正确的是
女性,40岁,3个月前精神受刺激,3个月来睡眠差。常口渴难忍,夜间亦需大量饮水,每日饮水4—5暖壶,喜饮凉水。尿量明显增加,平均每小时排尿一次,夜间也需排尿5次以上,全天尿量达9L。发病以来精神差,烦躁,消瘦,近2周出现头痛。此病人最合理的治疗为
髋关节是
关于债的实际履行原则的内涵,下列说法错误的是()。
下列说法中正确的是?()
一、注意事项1.申论考试是对考生阅读能力、综合分析能力、提出和解决问题能力以及文字表达能力的测试。2.参考时限:阅读资料40分钟,作答110分钟。3.仔细阅读给定资料,按照后面提出的“作答要求”作答。4.请在答题卡上
公安部和县级以上地方各级人民政府公安机关建立的督察机构由( )组成。
关于KeyPress事件,以下叙述中正确的是( )。
最新回复
(
0
)