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 is the skin?
What is the skin?
admin
2011-03-01
16
问题
What is the skin?
No organ of the body is less appreciated than the skin, one of our biggest organs — and the most telltale — it mirrors the state of our health, our age, and our race. Occupation and way of life may also become indelibly imprinted for all to see. Here some facts about our outer covering organ to show that there is more to the skin than meets the eye.
Your skin is your body’s thermostat. It adjusts heat gain and loss so that the internal temperature remains within the normal range of 97 to 99 degrees.
It takes about two square yards of skin to cover the average adult from head to toe. Undoubtedly the most intricate wrapping in existence, the skin contains 3 million cells, three feet of blood vessels, and twelve feet of nerves in each area the size of a postage stamp.
The widest difference between the darkest human skin and that of an albino is brought about by not more than 1/25 of an ounce of melanin. As far as is known, the amount of this dark brown or black pigment accounts for a our variations in racial colors, including yellow, brown, and black.
选项
A、Appreciated by most people.
B、An organ of the body.
C、An inactive organ.
D、Relatively unimportant.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/wukd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
Onwhatdayoftheweekwillthemagazinearrive?
Whatdoesthedoctorsuggestthemanshoulddo?
Whatprobablyistherelationshipbetweenthetwospeakers?
Whatprobablyistherelationshipbetweenthetwospeakers?
Increasingly,overthepasttenyears,people--especiallyyoungpeople--havebecomeawareoftheneedtochangetheireating
Playistheprincipalbusinessofchildhood,andmoreandmoreinrecentyearsresearchhasshownthegreatimportanceofplayi
WhendopeoplemostprobablywearT-shirts,accordingtothespeaker?
WhendopeoplemostprobablywearT-shirts,accordingtothespeaker?
BelowisagraphshowingChina’sTourismRankingintheworld.Lookatthegraphandwriteanessayofabout150words.
Forthefirsttimeinthescientificcommunity,thereistotalagreementthattheactivityofhumansisatleastpartlyresponsi
随机试题
研究开发部门与市场营销部门的合作,可采用哪些方式?
设随机变量序列X1,X2,…,Xn独立同分布,E(Xi)=μ,D(Xi)=σ2>0,(i=1,2,…),则对任意实数x,=________
A.乌药B.沉香C.川楝子D.青木香E.薤白
保护接地和保护接零是防止间接接触电击的基本技术措施,其中保护接零系统称为TN系统,包括TN-S、TN-C-S、TN-C三种方式。下列电气保护系统图中,属于TN-C系统的是()。
归纳法是从个别出发以达到一般性,从一系列特定的观察中,发现一种模式,这种模式在一定程度上代表所有给定事件的秩序。值得注意的是,这种模式的发现能同时解释为什么这个模式会存在。()
投资者于T日申购基金成功后,基金注册登记人于()日为投资者增加权益并办理注册登记手续,投资者于()日起可赎回该部分基金份额。
事物内部的肯定方面和否定方面的对立统一运动,从表现形式上看
设f(x)=求f(x)的极值.
计算机网络拓扑主要是指通信子网的拓扑构型。网络拓扑影响着网络的性能,以及Ⅰ.安全性Ⅱ.系统可靠性Ⅲ.层次结构Ⅳ.通信费用
Whycouldn’tthewomanfindadesirable3-bedroomapartment?
最新回复
(
0
)