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
2018-01-28
85
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.
【M4】
选项
答案
century一centuries
解析
词汇错误。For centuries是固定短语,意为“几个世纪以来”。
转载请注明原文地址:https://kaotiyun.com/show/qisK777K
0
专业英语八级
相关试题推荐
A、Theyreceivelittleeducation.B、Theyhavenorights.C、Theyallstayathomeashousewives.D、Theyusuallyspeaktwolanguage
HowtoApproachDiscursiveWriting?Howtoimprovetheeffectivenessofstudents’writing?Therearesixstageswhichshoul
HowtoApproachDiscursiveWriting?Howtoimprovetheeffectivenessofstudents’writing?Therearesixstageswhichshoul
InterculturalLearningManyteachersmaywonder"WhatamIactuallydoing?"sometimes.Itdoesn’tseemenoughtoteachgramm
InterculturalLearningManyteachersmaywonder"WhatamIactuallydoing?"sometimes.Itdoesn’tseemenoughtoteachgramm
ThecultureoftheUnitedStatesisaWesterncultureoriginallyinfluencedbyEuropeancultures.Ithasbeendevelopedsincelo
PASSAGEFOURWhatshouldcompaniesdotosurpassothers?
Advertisinginparticularreliesontargetingspecificgroupsofreaders,andoneofthemostfrequentwayswhichadvertising【S1
Advertisinginparticularreliesontargetingspecificgroupsofreaders,andoneofthemostfrequentwayswhichadvertising【S1
PASSAGETWOWhatistheproblemthatoutsourcingcompaniesinIndiaarefacing?
随机试题
某女,经行量多,色鲜红,质黏稠有血块,伴口渴便结,舌红脉数,多属于
前臂缺血性肌挛缩多见于
患者,女,38岁。缺失二年余,要求固定义齿修复而就诊。口腔检查:缺失,缺隙大小正常,缺牙区及两侧天然牙情况良好,咬合正常。拟为该患者行固定义齿修复该患者固定桥的固位作用主要来自
(1999)混凝土结构设计规范规定:偏心受压构件一侧纵向钢筋的最小百分率为0.2%。对于图中的工字形截面柱,其最小配筋面积As应为下列哪个数据?
撤销要约的通知应当在()到达受要约人。
2013年中国公民孙某转让境外上市公司的股票取得收入200000元;从中国境内上市公司分得持股期限8个月的股息3000元;购买企业债券30000份,买入价每份5元,支付相关税费1500元,当年转让10000份,卖出价每份5.5元,另支付相关税费550元。孙
幼儿与教师之间的相互关系可以从社会大范围和()来看。
《创世纪》是一部清唱剧,作者是海顿。
2011年我国全年货物进出口总额36421亿美元,比上年增长22.5%。其中出口18986亿美元,增加20.3%;进口17435亿美元,增长24.9%。进出口差额(出口值与进口值差额的绝对值)1551亿美元,比上年减少265亿美元。能够从
下列古希腊哲学家中,唯物主义的代表人物是()。
最新回复
(
0
)