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
2016-04-03
13
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 two-year survey to find out how to prevent or reduce dental decay. 946 students took part in the experiment. 523 students cleaned their teeth within ten minutes of eating. When possible, 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 clean-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. Faustick has cleaned his teeth after every 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 toothbrush 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 lose at least half 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.
19. According to the passage, what type of food or drink is most likely to cause dental decay?
20. What does the passage tell us about the condition of Dr. Faustick’s teeth?
21. What does Dr. Faustick suggest to prevent dental decay?
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 X-rayed at regular intervals.
D、Clean your teeth shortly after eating.
答案
D
解析
短文提到,理想的做法是,你应该随身携带牙刷,吃完东西马上刷牙。由此可知Dr.Faustick的建议是吃完饭立刻刷牙,所以答案为D。
转载请注明原文地址:https://kaotiyun.com/show/VhG7777K
0
大学英语六级
相关试题推荐
HisfuturesubjectshavenotalwaystreatedthePrinceofWaleswiththerespectonemightexpect.Theylaughedaloudin1986wh
Ifyouareattendingalocalcollege,especiallyonewithoutresidencehalls,you’llprobablyliveathomeandcommutetoclasse
Organisedvolunteeringandworkexperiencehaslongbeenavitalcompaniontouniversitydegreecourses.Usuallyitislefttoe
Encouragementandpraisecancomeinmanyforms,andsomewaysarebetterforchilddevelopmentthanothers.Researchersatthe
IntelchairmanAndyGrovehasdecidedtocuttheGordianknotofcontroversysurroundingstemcellresearchbysimplywritinga
A、Shewantstoborrowtheman’sstudentIDcard.B、Theticketsarelessexpensivethansheexpected.C、Shewon’tbeabletoget
Telecommunicationsisjustoneofthemeansbywhichpeoplecommunicateand,assuch,weneedtolookattelecommunicationsand
Peopletendtounderestimatetheirlifeexpectancy,andit’snotsurprising.It’sthelook-aroundproblemagain:You【C1】______fr
ImprovingthebalancebetweentheworkingpartofthedayandtherestofitisagoalofagrowingnumberofworkersinrichWe
A、805miles.B、1,000miles.C、1,305miles.D、1,500miles.C根据原文,本来有2,805miles,花了2,000miles换餐券,使用租车服务,又增加500里程数,所以最后账户里有1,305m
随机试题
一次文献资料来源于
《侵权责任法》第八十七条规定:从建筑物中抛掷物品或者从建筑物上坠落的物品造成他人损害,难以确定具体侵权人的,除能够证明自己不是侵权人的外,由可能加害的建筑物使用人给予补偿。关于该条文,下列哪些说法是正确的?()(司考.2014.1.51)
[2007年,第86题]梯形断面水渠按均匀流设计,已知过水断面A=5.04m2,湿周χ=6.73m,粗糙系数n=0.025,按曼宁公式计算谢才系数C为()。
认证机构在接到申请认证单位的有效文件后,对其申请进行受理。下列选项中,不属于申请受理的一般条件的是()。
某独立土方工程,招标文件中估计工程量为100万m3,合同中规定:土方工程单价为5元/m3,当实际工程量超过估计工程量15%时,调整单价,单价调为4元/m3。工程结束时实际完成土方工程量为130万m3,则土方工程款为()万元。
甲公司属于生产企业,为增值税一般纳税人,适用的增值税税率为17%。20×3~20×6年,与固定资产有关的业务资料如下:(1)20×3年12月10日,甲公司购入需要安装的生产线,取得的增值税专用发票注明价款为1160万元,增值税额为197.2万元;发生保险
流动性风险预警的内部指标包括()。
以下关于税务行政复议申请的规定,正确的有()。
在我国,关于夫妻之间的遗产继承权,说法正确的是()。
一个主报表最多只能包含【】子窗体或子报表。
最新回复
(
0
)