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 bound-aries of effective func
Cells cannot remain alive outside certain limits of temperature, and much narrower limits mark the bound-aries of effective func
admin
2015-04-24
22
问题
Cells cannot remain alive outside certain limits of temperature, and much narrower limits mark the bound-aries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow【C1】______around 37℃; a【C2】______, of a few degrees from this value seriously impairs their functioning. Even though cells can survive wider【C3】______, the integrated actions of bodily systems are impaired. Other animals have a wider tolerance【C4】______changes of body temperature.
For centuries【C5】______has been recognized that mammals and birds differ from other animals in the way they regulate body temperature. Ways of【C6】________ the difference have become more accurate and meaningful over time, but popular terminology still reflects the old division【C7】_________ " warm blooded" and " cold blooded" species; warm blooded included mammals and birds,【C8】______all other creatures were considered cold blooded.【C9】______more species were studied, it became evident that this classification was【C10】______A fence lizard usually has a body temperature only a degree or two below【C11】______of humans and so is not cold.【C12】______the next distinction was made between animals that maintain a【C13】______body temperature and those whose body temperature varies with their environment. But this classification also proved inadequate,【C14】______among mammals there are many that vary their body temperatures during hibernation.【C15】______ many invertebrates that live in the【C16】______of the ocean never experience a change in the chill of the deep water, and their body temperatures remain constant. The current distinction is between animals whose body temperature is【C17】_________chiefly by internal metabolic processes and those whose temperature is regulated by the【C18】______The latter do so mainly by moving to favorable sites or by changing their exposure to【C19】_________ sources of heat. Mammals and birds also regulate their temperature by choosing favorable environments, but primarily they regulate their temperature by making a variety of internal【C20】_________.
【C16】
选项
A、bottoms
B、lengths
C、depths
D、darkness
答案
C
解析
固定搭配。in the depths of the ocean是习惯搭配,意为“在深海区域”。与bottom搭配的介训是at。故答案为C。
转载请注明原文地址:https://kaotiyun.com/show/RgLO777K
0
考博英语
相关试题推荐
Thereisanewtypeofsmalladvertisementbecomingincreasinglycommoninnewspaperclassifiedcolumns.Itissometimesplaced
ThemilitaryaspectoftheUnitedStatesCivilWarhasalwaysattractedthemostattentionfromscholars.Theroarofgunfire,t
Theriseof"temp"workhasfurthermagnifiedthedecreasingrightsandalienationoftheworker.ItiscommoncorporatePractic
ClassifiedAdvertisingisthatadvertisingwhichisgroupedincertainsectionsofthepaperandisthusdistinguishedfromdisp
Priortothe20thcentury,manylanguageswithsmallnumbersofspeakerssurvivedforcenturies.Theincreasinglyinterconnected
PresidentRoosevelt’sadministrationsufferedadevastatingdefeatwhenonJanuary6,1936,theAgriculturalAdjustmentActwas
For【C1】______thebloodshedandtragedyofD-Day,thebeachesofNormandywillalwaysevokeacertain【C2】______:ayearning
TheAmericaneconomy,whetheringovernmentorprivateindustry,hasfoundretirementaconvenientpracticeformanagingthelab
Theageatwhichyoungchildrenbegintomakemoraldiscriminationsaboutharmfulactionscommittedagainstthemselvesorothers
Theageatwhichyoungchildrenbegintomakemoraldiscriminationsaboutharmfulactionscommittedagainstthemselvesorothers
随机试题
洛夏测验作为一种心理测验,其作用的方法是
股票的内在价值是由()决定的。
依据优先股票在公司盈利较多的年份里,除了获得固定的股息以外,能否参与或部分参与本期剩余盈利的分配,可将优先股分为( )。
组织设计的主体工作是()。
“犯错误效应”指()的人如果犯一些小错误,会增加他们的吸引力。(2010年11月真题)
奠定了班级组织的理论基础的著作是()。
司马谈《论六家要旨》:“①_________博而寡要,劳而少功,是以其事难尽从;然其序君臣父子之礼,列夫妇长幼之别,不可易也。②_________俭而难遵,是以其事不可遍循;然其强本节用,不可废也。③_________严而少恩;然其正君臣上下之分,
近年来,高空坠物事件屡有发生,受到社会广泛关注。不可否认,法律层面的规定,避免了高空坠物发生后出现索赔难的情形,确保了被侵权人的合法权益得到切实保护。然而,侵权责任法律的规定,明显具有滞后性,也就是说只有发生侵害行为后,法律才会介入。那么,当侵权行为发生后
Duringthe1980s,unemploymentandunderemploymentinsomecountrieswasashighas90percent.Somecountriesdidnot【21】____
IstheaveragetemperatureofShenyanginsummer______?
最新回复
(
0
)