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
2016-06-25
42
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/fRRd777K
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
Industryhasgreatinfluenceoneveryaspectofthepeopleintheworld.Theindustrialsocietieshavebeenextremelyproductive
Industryhasgreatinfluenceoneveryaspectofthepeopleintheworld.Theindustrialsocietieshavebeenextremelyproductive
Industryhasgreatinfluenceoneveryaspectofthepeopleintheworld.Theindustrialsocietieshavebeenextremelyproductive
Industryhasgreatinfluenceoneveryaspectofthepeopleintheworld.Theindustrialsocietieshavebeenextremelyproductive
BeforeMikebecameanactor,whatkindofschooldidhegoto?
Fathersexposedtopoisonoussubstancesareprobablyjustaslikelytobethecauseofdefectsintheirunborninfantsasmother
WhydoesJohnwanttobuyabicycle?
TheGentleman’sHouse
Apoliceman
随机试题
标志着中国半殖民地半封建化起点的是【】
设平面π的方程为-2y+2x+1=0,以下选项中错误的是()。
已知某预制桩截面尺寸300mm×300mm,桩顶位于地面下1.0m,桩长12.5m,土层分布情况如下:0~1.0m填土,γ=17kN/m3,1.0~4.0m粉质黏土,γ=19kN/m3,4.0~10.0m淤泥质黏土,γ=18.2kN/m3,10.0-12.
在衡量一个国家产出水平的诸多指标中,目前最通行的指标是()。
具体来看,关键风险指标监控由()等步骤组成。
_________是对不同教学领域课程内容中的水平要求进行的量化评价。
一、注意事项1、申论考试与传统的作文考试不同,是分析驾驭材料的能力与表达能力并重的考试。2、作答参考时限:阅读时间40分钟,作答110分钟。3、仔细阅读给定的资料,按照后面提出的“作答要求”依次作答在答题纸指定位置。4、答题时认准题号,避免答错位置
年逾七旬的戴三南有两个事业,一个是“赚钱”的实业,一个是“花钱”的公益事业,二者_______,义利并举,以义为利。戴三南的这种务实精神和奉献精神为锡商树立了榜样。他让人所感动的,不仅仅是历经艰难坎坷的创业之路以及倾心公益、情系教育的善行义举,更是一种__
定义无符号整数类为UInt,下面可以作为类UInt实例化值的是()。
A、Smallquarrelsdonotharmtheirhealth.B、Smallquarrelsaregoodforacloserelationship.C、Theyknowtheycouldcountone
最新回复
(
0
)