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
Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective func
Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective func
admin
2016-02-23
31
问题
Cells cannot remain alive outside certain limits of
temperature and much narrower limits mark the boundaries of
effective functioning. Enzyme systems of mammals and birds are
most efficient only with a narrow range around 37℃; a departure【M1】______
of a few degrees from this value serious impairs their functioning.【M2】______
Even though cells can survive wider fluctuations the integrated
actions of bodily systems are impaired. Other animals have a wide【M3】______
tolerance for changes of bodily temperature.
For century it has been recognized that mammals and birds【M4】______
differ other animals in the way they regulate body temperature.【M5】______
Ways of characterizing the difference have become more accurate
and meaningful over time, but popular terminology still reflects an【M6】______
old division into " warm-blooded" and " cold-blooded" species;
warm-blooded included mammals and birds whereas all other
creatures were considered cold-blooded. As more species were
studied, it became evident that this classification was adequate. A【M7】______
cold-blooded fence lizard usually has a body temperature only a
degree or two below those of humans and so is not cold. Therefore【M8】______
the next distinction was taken between animals that maintain a【M9】______
constant body temperature, called homeotherms, and those whose
body temperature varies with their environments, called
poikilotherms. But this classification was also proved inadequate,【M10】______
because among mammals there are many that vary their body
temperatures during hibernation. Furthermore, many invertebrates
that live in the depths of the ocean never experience change in the
depths of the ocean, and their body temperatures remain constant.
【M3】
选项
答案
wide一wider
解析
语篇错误。根据上下文,此句意为“(与哺乳动物和鸟类相比)其他动物对体温变化的容忍度大一些。”前后句之间有比较的意味。所以应该用比较级wider,表示对比。
转载请注明原文地址:https://jikaoti.com/ti/pMMYFFFM
0
专业英语八级
相关试题推荐
______proposesthathumanbeingsaregiftedwiththelanguageacquisitiondevice,aninbornmodelofthestructureofhumanlan
Itis,everyoneagrees,ahugetaskthatthechildperformswhenhelearnstospeak,andthefactthathedoessoinsuch【M1】__
Theeconomystoppedshrinkingayearago,butAmerica’sunemploymentproblemisasbigasever.Theofficialjoblessratewas9.
HowtoEnsureSurvivalintheCollegeDormLifeincollegedormcanbehard,especiallyforthefirst-years.HereShahJ.Ch
Accordingtothenewsitem,howmanyAmericansareunemployed?
InawindowlessroomontheUniversityofCalifornia,Berkeley,campus,twoundergradsareplayingaMonopolygamethatoneoft
Associetychanges,socialvaluesandlinguisticvaluesbegintodiverge.Languagecontainstraditionalvalues—thisiswhichis
Thefirstinventionofmankindwasthewheel.Theinventionofthewheelisprobablythemostimportantinventionofalltime.
InawindowlessroomontheUniversityofCalifornia,Berkeley,campus,twoundergradsareplayingaMonopolygamethatoneoft
"Almostuniversally,womenhavefailedtoreachleadingpositionsinmajorcorporationsandprivatesectororganizations,resp
随机试题
(2009年第46题)假膜性炎是发生于
根据《罂粟壳管理暂行规定》(1999年),中药饮片经营门市部零售罂粟壳,必须
高浓度葡萄糖、尿素或造影剂皆不影响的比重测定方法为
我国《环境保护法》的基本原则是( )。
一、注意事项1.《申论》考试,与传统作文考试不同,是对分析驾驭材料的能力与对表达能力并重的考试。2.作答参考时限:阅读资料40分钟,作答110分钟。3.仔细阅读给定的资料,然后按“申论要求”依次作答。二、给定资料1.200
A、 B、 C、 D、 C内部图形依次顺时针旋转90°并依次向右移动。
训练水平即指运动员在训练过程中达到的竞技能力的水平。()
人类在科学研究中掌握了电能的规律,然后以该规律为指导,人们研制生产出各种工业和家用电器,极大地促进了生产力的发展和人类生活品质的改善。这一事实表明()
A、B、C、D、B
Readthefollowingtextanddecidewhichanswerbestfitseachspace.Forquestions26-45,markoneletterA,B,CorDony
最新回复
(
0
)