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
2019-10-21
20
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 the 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 an 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://kaotiyun.com/show/nUCd777K
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
Inrecentyearsanewfarmingrevolutionhasbegun,onethatinvolvesthe【21】______oflifeatafundamentallevel—thegene.
IftheUnitedNationsSecurityCouncilrushestosendinspectorsbackintoIraqonBaghdad’spromiseofcooperationandunde
China’spolicyofdevelopingthewestisbeingcarriedout.Asyoungerbuilders,wemusthavehelpfulsuggestionsforbettercon
Manypeoplecanrememberfeelingverylonelywhenwewere______.
Whatdidtheideaofpublicworkprojectshelpduringeconomicdepression?
ThelivesofveryfewNewarkresidentsareuntouchedbyviolence.NewJersey’sbiggestcityhasseenitall.Yetthemurderoft
Irememberthewaythelighttouchedherhair.Sheturnedherhead,andoureyesmet,amomentaryawarenessinthatraucousfift
OnthenorthbankoftheOhioRiversitsEvansville,Ind.,homeofDavidWilliams,52,andofariverboatcasino(aplacewhere
OnthenorthbankoftheOhioRiversitsEvansville,Ind.,homeofDavidWilliams,52,andofariverboatcasino(aplacewhere
随机试题
男性。30岁。水肿、尿少、呕吐2个月,血压180/120mmHg,尿蛋白(+++),红细胞5~8个/HP,白细胞8~10个/HP,颗粒管型5~10个/HP,BUN29mmol/L,Cr860pmol/L,血红细胞12.8×1012/L,该病人诊断为慢性肾炎
关于蜘蛛痣的概念,错误的是
泵站进出水建筑物中,衔接引渠和进水池的水工建筑物为()。
某住宅小区的居住建筑面积为120000m2,规划的容积率为1.5,公共建筑面积与居住建筑面积之比为1:8,则该居住小区用地总面积为()m2。
下列论述不正确的有( )。
某幼儿园的院子里有几种高大的树,也有一些比较低矮的灌木。请你结合院子里的这些资源,设计一个题为“幼儿园的树木”的中班主题活动方案(含3个子活动),要求写出总目标,每个子活动的名称、目的和主要环节。
简要说明马斯洛的内在学习论?
编写如下程序代码:PrivateSubCommand1_Click()CallsubproEndSubSubsubpro()StaticsumAsIntegerDimiAs
FactsaboutStroke1Every45seconds,someoneinAmericahasastroke.Every3.1minutes,someonediesofone.Strokekilled
Inthepast,theParkServicefocusedonmakingthebigscenicparksmore【C1】______andcomfort-ablefortourists.Roadswerepav
最新回复
(
0
)