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
53
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.
【M8】
选项
答案
those一that
解析
语法错误。此处对比的对象是a body temperature,是一个单数形式的名词,而且通过常识,我们知道人类的身体常温都是相同的,因此应该用单数概念的代词that。
转载请注明原文地址:https://kaotiyun.com/show/SKKO777K
0
专业英语八级
相关试题推荐
DumbandDumber,oneofthemodernclassicsofAmericancomedy,tellsthestoryofanaffableidiot,LloydChristmas,whofalls
DumbandDumber,oneofthemodernclassicsofAmericancomedy,tellsthestoryofanaffableidiot,LloydChristmas,whofalls
Anystudentsettingoutonacademiccareerinscienceislikelytobecomeincreasinglyseparatedfromhumanitiesandsociety.Ev
Scienceisgenerallytakenasmeaningeither(a)theexactsciences,suchaschemistry,physics,etc.,or(b)amethodofthough
Associetychanges,socialvaluesandlinguisticvaluesbegintodiverge.Languagecontainstraditionalvalues—thisiswhichis
Traditionalplantbreedinginvolvescrossedvarietiesofthe【M1】______samespeciesinwaystheycouldcrossnaturally.Forexa
Traditionalplantbreedinginvolvescrossedvarietiesofthe【M1】______samespeciesinwaystheycouldcrossnaturally.Forexa
JohnBull’sOtherIslandisaplaywrittenby
Thereare______politicaldivisionsontheislandofGreatBritain.
Alikelightwaves,microwavesmaybereflectedandconcentrated.
随机试题
美国公共政策研究学者埃齐奥尼提出的政策模型是()
A.亲和层析B.SDS-PAGEC.等电点沉淀法D.离子交换层析纯化酶和受体蛋白效率最高的方法是
能补肾益精,安胎的药物是()
下列哪种物质的肾清除率能准确代表肾小球滤过率
浅Ⅱ度烧伤,烧伤深度可达
新鲜脑脊液混浊,最常见的原因是含大量
溶血反应者可见()
关于水稻,下列说法正确的是:
Theworldisgoingthroughthebiggestwaveofmergersandacquisitionsneverwitnessed.TheprocesssweepsfromhyperactiveAme
WewelcomeyouaboardtheEasternFlightandwilldoourbesttomakeyourtripcomfortableandenjoyable.Foryoursafetyand
最新回复
(
0
)