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、Compression fractures cause the collapse of back bones. B、Bone material is lost and cannot be replaced any more. C、Bones becom
A、Compression fractures cause the collapse of back bones. B、Bone material is lost and cannot be replaced any more. C、Bones becom
admin
2015-07-13
48
问题
When we say older people shrink, we don’t mean they become tiny enough to fit in your pocket! We just mean that it’s common for older people to become a little shorter over time. It isn’t dramatic or sudden. It takes place over years and may add up to only an inch or so off of their adult height.(19)This kind of shrinking can’t be reversed, although people can slow or stop this process. But why does shrinking happen at all?
Gravity, the force that keeps your feet on the ground, takes hold, and the disks, or cushions between the bones in the spine, get compressed over time.(20)The back bones end up pressing closer together, which makes a person lose a little height and become shorter.
Another reason why some older people shrink is because of the weakening of the bone which occurs when the bone is broken down and not enough new bone material is made. Over time, the bone is said to be lost because it’s not being replaced. Bones become smaller and weaker and can easily break if someone with this problem is injured.
Older people, especially women, who generally have smaller and lighter bones to begin with, can get small breaks in bones that are called compression fractures.(21)These breaks cause collapse of the back bones and over time the person can become stooped.
19. What do we know about the shrinking process of older people?
20. What is the main reason for people’s becoming shorter?
21. How do people become stooped?
选项
A、Compression fractures cause the collapse of back bones.
B、Bone material is lost and cannot be replaced any more.
C、Bones become smaller and weaker and collapse easily.
D、Cushions get compressed with the increased gravity.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/KVl7777K
0
大学英语四级
相关试题推荐
Accordingtosociologists,thereareseveraldifferentwaysapersonmaybecomerecognisedastheleaderofasocialgroup.Alth
OneofthestrangestandmostfascinatingthingsaboutScotlandistheLochNessMonster.Somepeoplebelieveinthemonster’s【B
OneofthestrangestandmostfascinatingthingsaboutScotlandistheLochNessMonster.Somepeoplebelieveinthemonster’s【B
Howmenfirstlearnedtoinventwordsisunknown;inotherwords,theoriginoflanguageisa【B1】______.Allwereallyknowist
Howmenfirstlearnedtoinventwordsisunknown;inotherwords,theoriginoflanguageisa【B1】______.Allwereallyknowist
Google’sGoogleproblemA)GoogleiskillingGoogleReader.UseofGoogleReader,atool,bytheway,forreadingonlinecontent
A、Themancanmoveinaweeklater.B、Themancannottaketheapartment.C、Themanshouldpaintthewholething.D、Themanshoul
A、Janeislookingforasummerjob.B、Janeispackingforthesummervacation.C、Janeisonherwayhome.D、Janeiseagertogo
A、Tomakethewomanangry.B、Topleasetheman’smother.C、Davidistheman’sgoodfriend.D、Davidisgoodatcarryingonconver
A、Sixteenpeopledrowned.B、ItstoppedinaGreekisland.C、Therewere15peopleonboard.D、ItstartedfromTurkey.D题目问关于移民船只的
随机试题
学校作为整个社会体系的重要组成部分,在培养国家和民族的未来人才中具有重要的作用。根据各级各类学校任务确定的对所培养的人的特殊要求叫作()。
Infootball,nothingismorevaluablethanthewonderkid.Managersspendplentyoftheirtimesearchingfortheseraregems(室石)
如果
用于治疗热毒疮疡,咽喉肿痛,药食中毒的药物是
以下哪条不是促进扩散的特征
一、背景某机电安装公司承建一个生活小区室外热力管网工程安装任务。施工范围是由市政热力管网至各居民住宅楼号室外1m,管线是不通行地沟敷设。该项目的所有施工内容完毕,并与市政热力管网和各楼号热力管网接通后,在进行竣工验收的同时,项目经理部组织整理竣工
苏联早期领导人布哈林曾说:“我们过去以为可以一举消灭市场关系.而实际情况却表明,我们恰恰要通过市场关系走向社会主义。”这一思想符合苏俄(联)实行的经济政策是()。
当事人对于买卖合同风险转移没有约定的,标的物毁损、灭失的风险的转移时间是()。
设f(x),g(x)在[a,b]上连续,在(a,b)内可导,证明:存在ξ∈(a,b),使得
HowAdvertisementIsDone?A)Whenwechooseawordwedomorethangiveinformation;wealsoexpressourfeelingsaboutwha
最新回复
(
0
)