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
Whatever their chosen method, Americans bathe zealously. A study conducted found that we take an average of 4.5 baths and 7.5 sh
Whatever their chosen method, Americans bathe zealously. A study conducted found that we take an average of 4.5 baths and 7.5 sh
admin
2017-08-15
66
问题
Whatever their chosen method, Americans bathe zealously. A study conducted found that we take an average of 4.5 baths and 7.5 showers each week and in the ranks of non-edible items purchased by store customers, bar soap ranks second, right after toilet paper. We spend more than $700 million annually on soaps, but all work the same way. Soap is composed of molecules that at one end attract water and at the other end attract oil and dirt, while repelling water. With a kind of pushing and pulling action, the soap loosens the bonds holding dirt to the skin.
Unless you’re using a germicidal soap, it usually doesn’t kill the bacteria—soap simply removes bacteria along with dirt and oil. Neither baths nor showers are all that necessary and unless you’re in a Third World country where infectious diseases are common, or you have open sores on your skin, the dirt and bacteria aren’t going to hurt. The only reason for showering or bathing is to feel clean and refreshed. There is a physiological basis for this relaxed feeling. Your limbs become slightly buoyant in bathwater, which takes a load off muscles and tension. Moreover, if the water is hotter than normal body temperature, the body attempts to shed heat by expanding the blood vessels near the surface of the skin, lessening the circulatory system’s resistance to blood flow, and dropping blood pressure gently. A bath is also the most effective way to hydrate the skin. The longer you soak, the more water gets into the skin and because soap lowers the surface tension of the water, it helps you hydrate rapidly and remove dry skin flakes.
However, in a bath, all the dirt and grime and the soap in which it’s suspended float on the surface. So when you stand up, it covers your body like a film. The real solution is to take a bath and then rinse off with a shower, however, after leaving a tub or freshly exposed skin becomes a playground for microbes. In two hours, you probably have as many bacteria on certain parts of the body, such as the armpits, as before the bath.
According to the text, bathing removes dry skin flakes because ______.
选项
A、the soap draw it off the body
B、the skin hydrates
C、the circulation of blood expands skin particles
D、the change in blood pressure releases the film
答案
B
解析
从第2段末尾一句可知,因为肥皂能减轻水的表面张力,所以有助于皮肤迅速水合,从而去除干燥的皮屑。因此B项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/jKFO777K
0
考博英语
相关试题推荐
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
Consumersandproducersobviouslymakedecisionsthatmoldtheeconomy,butthereisathirdmajor【C1】______toconsidertherole
Thereareanumberofformatsforreportingresearch,suchasarticlestoappearinjournals,reportsaddressedtofundingagenc
Inrecentyearsmanycountriesoftheworldhavebeenfacedwiththeproblemofhowtomaketheirworkersmoreproductive.Some
Today,cigarettesmokingisawidespreadhabit.About43percentoftheadultmenand31percentoftheadultwomenintheUSsm
Thegreatestdevastationofoldageisthelossofmentalfaculties,andwiththeneardoublingoflifeexpectancyinthepastc
Computerprogrammersoftenremarkthatcomputingmachines,withaperfectlackofdiscrimination,willdoanyfoolishthingthey
AfricanAmericanwomen’ssearchforsocietalacceptanceoftenencompassesstrugglebetweennaturalandsociallyconstructedidea
Fewcreationsofbigtechnologycapturetheimaginationlikegiantdams.Perhapsitishumankind’slongsufferingatthemercyof
随机试题
考生文件夹下存在一个数据库文件“samp2.accdb”,里面已经设计好表对象“tCourse”、“tScore”和“tStud”,试按以下要求完成设计:创建一个查询,运行该查询后生成一个新表,表名为“tNew”,表结构包括“学号”、“姓名”、“性别”
吸入支气管舒张药后,肺功能检查确定气流不完全可逆的标准是
患者,女,62岁,诊为支气管哮喘3年,哮喘发作与吸入刺激性气体有关。6小时前患者在吸入油烟后咳嗽、喘息发作,控制该患者急性发作症状首选的药物是
宅基地使用人应承担下列义务()。
量纲分析的基本原理是()。
水是人类及一切生物赖以生存的不可缺少的重要物质。关于水的表述,下列选项错误的是()。
在黑盒测试方法中,设计测试用例的主要根据是( )。
将文件夹下SWN文件夹移动到文件夹下SERN文件夹中。
Conservativescientistswhodenythatcosmicgulfscaneverbecrossedwill______.
Mostpeopleconsiderbacteriadangerous.Afterall,thesemicroorganismscauseahostofserioushumandiseases,includingtuber
最新回复
(
0
)