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
What kind of food is most likely to cause dental decay?
What kind of food is most likely to cause dental decay?
admin
2009-03-16
55
问题
What kind of food is most likely to cause dental decay?
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 tire number of your visits to a dentist. Dr. Faustick conducted a two-year 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 possibly they used a toothbrush, 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 former group. Dr. Faustick has cleaned his teeth after each 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 out of 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 pleasant. So it is worthwhile making mi effort to keep your own teeth as long as possible. The main preventative agent is simply water.
选项
A、13.
B、None.
C、1.
D、A few.
答案
B
解析
转载请注明原文地址:https://www.kaotiyun.com/show/WtPd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Somemodemcitiesareusuallyfamousforpeoplewholiveaverylongtime.
Somemodemcitiesareusuallyfamousforpeoplewholiveaverylongtime.
Answerquestions71~80byreferringtothefollowinggames.Note:AnswereachquestionbychoosingA,B,CorDandmarkiton
Inthefollowingarticlesomeparagraphshavebeenremoved.ForQuestions66~70,choosethemostsuitableparagraphfromthelis
Asthe2lstcenturybegins,anumberofleadersinpolitics,education,andotherprofessionsbelievethattheUnitedStatesmus
Childrenwhogriptheirpenstooclosetothewritingpointarelikelytobeatadisadvantageinexaminations,【31】______tothe
Childrenwhogriptheirpenstooclosetothewritingpointarelikelytobeatadisadvantageinexaminations,【31】______tothe
Aneweraisuponus.Callitwhatyouwill:theserviceeconomy,theinformationage,theknowledgesociety.Italltranslates
随机试题
A.保存芦丁、缓和苦寒之性B.有机酸和总黄酮含量降低C.挥发油含量基本不变D.有明显止血作用E.槟榔碱含量降低
机械设备安全应考虑机械产品安全和机械使用安全两个阶段,每个阶段都应采取安全技术措施和安全管理措施消除或减小机械设备风险。下列机械设备安全措施中,不属于安全技术措施的是()。
自带电源集中控制型系统由()组成。
“备案号”栏应填()。“标记唛码及备注”栏的“备注”项()。
汉传佛教中,对中国文化思想影响最大的是()。
社区需求的类型有()。
根据《中华人民共和国城市居民委员会组织法》,居民自治的主体是()。
设f(χ)在[a,b]有二阶连续导数,M=|f〞(χ)|,证明:
电子邮件服务器之间相互传递邮件通常使用的协议为()。
Salesmendependupontheperson-to-personapproachintryingtopersuadeconsumerstobuy.Advertising,however,hastodependu
最新回复
(
0
)