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
15
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.
【M1】
选项
答案
with—within
解析
词汇错误。range(范围)一词前用within,表示“在某个范围内”,符合文中意思,而with表示“拥有”或“伴随”的意思,不符合此处要表达的意思。
转载请注明原文地址:https://jikaoti.com/ti/UMMYFFFM
0
专业英语八级
相关试题推荐
Itis,everyoneagrees,ahugetaskthatthechildperformswhenhelearnstospeak,andthefactthathedoessoinsuch【M1】__
Itis,everyoneagrees,ahugetaskthatthechildperformswhenhelearnstospeak,andthefactthathedoessoinsuch【M1】__
Therearesome______universitiesintheUnitedKingdom,includingtheOpenUniversity.
Recently,Ihaveheardtwostoriesregardingtheautomobilesector.ThesalesofaSino-USjointventurehaveincreasedsignific
MartinLutherKing,Jr.,ablackyoungclergyman,becameanationalleaderofthe______Movement.
Therearemorethan300millionofusintheUnitedStates,andsometimesitseemslikewe’reallfriendsonFacebook.Butthes
Accordingtothenewsitem,whichofthefollowingwillHLNfocusoninpoliticalreports
WhichofthefollowingcountryisNOTlocatedintheNorthernHemisphere?
Schoolsarehighlybureaucraticorganizations.Manyteachersrelyin【M1】______therulesandregulationsofschoolstomaintain
Whenimaginativescientistsfirstsuggestedthepossibilitythatonepersoncouldspeakdirectlytoanotheroveralongdistanc
随机试题
有关影响滤过因素的叙述,错误的是
A.黄芪桂枝五物汤B.生脉散C.玉屏风散合牡蛎散D.当归六黄汤E.桂枝汤
A、药物与杂质氧化还原性质的差异B、杂质与一定试剂反应产生沉淀C、药物与杂质对红外光吸收性质的差异D、药物与杂质对紫外光吸收性质的差异E、药物与杂质溶解行为的差异洋地黄毒苷中检查洋地黄皂苷的基本原理是( )。
张某于2009年12月购买了两套住房。住房Ⅰ为毛坯房,建筑面积为96m,单价为5800元/m2;住房Ⅱ为精装修,建筑面积为146m2,单价为7800元/m2。完成房屋交割手续后,张某拟对住房Ⅰ进行室内装饰装修,其中选材上比较了实木地板、复合地板、塑料地板和
2009年以来,我国旅游业的创新发展主要表现()。
关于劳动争议仲裁说法错误的是()。(2007年11月二级真题)
遵守行文规则是为了()。
ManyAmericansregardthejurysystemasaconcreteexpressionofcrucialdemocraticvalues,includingtheprinciplesthatallc
Ourcenterwasfoundedin1999inBeijing.Oneofitsgoalsistodevelopcomputermaterialsandtoteachbusinessownershowto
A—jobobjectiveJ—nationalityB—interestsandhobbiesK—referenceC—personaldataL—workexperienceD—degr
最新回复
(
0
)