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
考研
In the early 1960s Wilt Chamberlain was one of only three players in the National Basketball Association (NBA) listed at over se
In the early 1960s Wilt Chamberlain was one of only three players in the National Basketball Association (NBA) listed at over se
admin
2017-01-17
19
问题
In the early 1960s Wilt Chamberlain was one of only three players in the National Basketball Association (NBA) listed at over seven feet. If he had played last season, however, he would have been one of 42. The bodies playing major professional sports have changed dramatically over the years, and managers have been more than willing to adjust team uniforms to fit the growing numbers of bigger, longer frames.
The trend in sports, though, may be obscuring an unrecognized reality: Americans have generally stopped growing. Though typically about two inches taller now than 140 years ago, today’s people—especially those born to families who have lived in the U.S. for many generations—apparently reached their limit in the early 1960s. And they aren’t likely to get any taller. "In the general population today, at this genetic, environmental level, we’ve pretty much gone as far as we can go," says anthropologist William Cameron Chumlea of Wright State University. In the case of NBA players, their increase in height appears to result from the increasingly common practice of recruiting players from all over the world.
Growth, which rarely continues beyond the age of 20, demands calories and nutrients—notably, protein—to feed expanding tissues. At the start of the 20th century, under-nutrition and childhood infections got in the way. But as diet and health improved, children and adolescents have, on average, increased in height by about an inch and a half every 20 years, a pattern known as the secular trend in height. Yet according to the Centers for Disease Control and Prevention, average height—5 ’9" for men, 5’4" for women—hasn ’t really changed since 1960.
Genetically speaking, there are advantages to avoiding substantial height. During childbirth, larger babies have more difficulty passing through the birth canal. Moreover, even though humans have been upright for millions of years, our feet and back continue to struggle with bipedal posture and cannot easily withstand repeated strain imposed by oversize limbs. "There are some real constraints that are set by the genetic architecture of the individual organism," says anthropologist William Leonard of Northwestern University.
Genetic maximums can change, but don’t expect this to happen soon. Claire C. Gordon, senior anthropologist at the Army Research Center in Natick, Mass, ensures that 90 percent of the uniforms and workstations fit recruits without alteration. She says that, unlike those for basketball, the length of military uniforms has not changed for some time. And if you need to predict human height in the near future to design a piece of equipment, Gordon says that by and large, "you could use today’s data and feel fairly confident."
We learn from the last paragraph that in the near future
选项
A、the garment industry will reconsider the uniform size.
B、the design of military uniforms will remain unchanged.
C、genetic testing will be employed in selecting sportsmen.
D、the existing data of human height will still be applicable.
答案
D
解析
细节题。最后一段Claire C.Gordon提到90%的制服和工作间仍将会适合新招人员,这就暗示了D项所提到的内容“现在的人类身高数据将来仍会适用”是正确的。另外,可以依据排除法可以知道A、B、C项不正确。
转载请注明原文地址:https://kaotiyun.com/show/kQEZ777K
0
考研英语一
相关试题推荐
Doctorsalreadyknowthatpeoplewhosmokecandamagetheirhearing.ThelateststudyinthejournalTobaccoControl,【C1】______m
About3billionpeoplelivewithin100miles(160km)ofthesea,anumberthatcoulddoubleinthenextdecadeashumansflockt
About3billionpeoplelivewithin100miles(160km)ofthesea,anumberthatcoulddoubleinthenextdecadeashumansflockt
Childrenneedexercise.Parentsoftenworrythat【C1】______timeforathleticsorevenforjustplayingontheJungleJimis
TheEU’sclimatechiefisseekingtoextendthebloc’srenewableenergytargets,inamoveapparentlydesignedtoprotectthegr
TheEU’sclimatechiefisseekingtoextendthebloc’srenewableenergytargets,inamoveapparentlydesignedtoprotectthegr
TheEU’sclimatechiefisseekingtoextendthebloc’srenewableenergytargets,inamoveapparentlydesignedtoprotectthegr
Everybodylovesafatpayrise.Yetpleasureatyourowncanvanishifyoulearnthatacolleaguehasbeengivenabiggerone.I
Everybodylovesafatpayrise.Yetpleasureatyourowncanvanishifyoulearnthatacolleaguehasbeengivenabiggerone.I
随机试题
化妆的原理和技巧很多来自于绘画,美术功底的好坏直接关系到妆面效果的好坏。()
健康教育过程评价主要评价健康教育活动中__________双方的参与情况、活动进展及活动效率等。
毛泽东在《改造我们的学习》中对实事求是的解释中,指出“是”是()
A、 B、 C、 D、 A
男性,20岁,突然出现颈部肿大,伴发热1天,呼吸困难。查体:颈前肿胀明显,对称性,明显触痛,张力大。初步诊断
A.雀斑B.黄褐斑C.白癜风D.太田痣E.蒙古斑皮疹与胚胎期黑素细胞移行异常有关的皮肤疾病
下列关于营销战略、广告战略、创意策略侧重点的描述,错误的是()。
阅读以下说明,回答问题1至问题3,将解答填入对应栏内。【说明】某企业依照软件工程的原则建设电子商务系统。为了使电子商务系统的建设能够达到企业的要求并顺利完成,在开发系统之前,企业邀请有关方面的专家按照运行可行性、技术可行性、经济可行性和社会环境可
公司中有多个部门和多名职员,每个职员只能属于一个部门,一个部门可以有多名职员。则实体部门和职员间的联系是
On______,1776,theCongressadoptedtheDeclarationofIndependence.
最新回复
(
0
)