首页
登录
职称英语
[originaltext]W: Ok, last night you were supposed to read an article about huma
[originaltext]W: Ok, last night you were supposed to read an article about huma
游客
2023-09-11
75
管理
问题
W: Ok, last night you were supposed to read an article about human bones. Are there any comments about it?
M: Well, to begin with, I was surprised to find out there was so much going on in bones. I always assumed they were pretty lifeless.
W: Well, that’s an assumption many people make. But the fact is bones are made of dynamic living tissue that requires continuous maintenance and repair.
M: Right. That’s one of the things I found so fascinating about the article the way the bones repair themselves.
W: Ok. So can you tell us how the bones repair themselves?
M: Sure. See, there are two groups of different types of specialized cells in the bone that work together to do it. The first group goes to an area of the bone that needs repair. This group of cells produces the chemical that actually breaks down the bone tissue, and leaves a hole in it. After that the second group of specialized cells comes and produces the new tissue that fills in the hole that was made by the first group.
W: Very good. This is a very complex process. In fact, the scientists who study human bones don’t completely understand it yet. They are still trying to find out how it all actually works. Specifically, because sometimes after the first group of cells leaves a hole in the bone tissue, for some reason, the second group doesn’t completely fill in the hole. And this can cause real problems. It can actually lead to a disease in which the bone becomes weak and is easily broken.
M: Ok, I get it. So if the scientists can figure out what makes the specialized ceils work, maybe they can find a way to make sure the second group of cells completely fills the hole in the bone tissue ever time. That’ll prevent the disease from every occurring.
选项
A、Two different types of bones in the human body.
B、How bones help the body move.
C、How bones continuously repair themselves.
D、The chemical composition of human bones.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3005028.html
相关试题推荐
[originaltext]WeknowthenthatintheUS,it’sthejobofCongresstopropo
[originaltext]WeknowthenthatintheUS,it’sthejobofCongresstopropo
[originaltext]Alotofpeoplethinkthatculturalanthropologyisjustabout
[originaltext]W:Hi,Jack.Tomorrow’sthebigday!Youmustbeexcitedaboutgo
[originaltext]W:Hi,Jack.Tomorrow’sthebigday!Youmustbeexcitedaboutgo
[originaltext]Everyartistknowsinhisheartthatheissayingsomethingto
[originaltext]Studiesshowthattelevisionplaysabigpartinthelivesof
[originaltext]Studiesshowthattelevisionplaysabigpartinthelivesof
[originaltext]W:Mr.Gordon,couldyougivethelistenerssomeideaofhowthis
[originaltext]W:Mr.Gordon,couldyougivethelistenerssomeideaofhowthis
随机试题
Thissummer,Texas’droughtofthecenturyisanuncomfortablereminderthat
A. B. C. D.
在信息系统试运行阶段,系统失效将对业务造成影响。针对该风险,如果采取“接受”的方
患病率的计算方法是A.(特定时间点某人群中某病的新旧病例数/观察人口)×k B
关于电击伤的叙述哪项不正确A.高频交流电危害性较低频交流电为大 B.交流电的危
产权比率等于负债总额除以()。A.资产总额 B.股东权益总额 C.利润
某债券面值为100元,票面利率为6%,每年付息一次,起息日是8月5日,交易日是1
自然人的民事权利能力始于出生终于死亡。( )
董某前往个体工商户邵某的“邵氏手机店”,打算购买一块手机锂电池。由于生意火爆,邵
关于钢结构高强度螺栓连接,下列说法正确的有()。A.高强度螺栓可以兼作安装
最新回复
(
0
)