首页
登录
职称英语
Cells cannot remain alive outside certain limits of temperature, and much n
Cells cannot remain alive outside certain limits of temperature, and much n
游客
2023-11-15
34
管理
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 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 bodily 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 blood- ed " 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】______ . [br] 【C4】
选项
A、between
B、for
C、with
D、around
答案
B
解析
本句表达的是对温度变化范围的容忍,选项中只有for可以与tolerance搭配,指“容忍某人或某事”,如:a low tolerance for errors(对错误不能容忍)。
转载请注明原文地址:https://tihaiku.com/zcyy/3189743.html
相关试题推荐
Sometimesthestudentmaybeaskedtowriteabouthis______toacertainbooko
Sheremainsconfidentand______untroubledbyourpresentproblems.A、indefinite
Ourscientificfindingscannotberegardedas______insuchashortperiodoft
Somepeopleeither______avoidquestionsofrightandwrongorjustremainneut
Sheremainsconfidentand______untroubledbyourpresentproblems.A、indefinite
Asoneoftheyoungestprofessorsintheuniversity,Longfellowiscertainlyon
Generallyspeaking,______immigrantscannottotallycutthetiewiththeirmoth
Certainlynocreatureintheseais【C1】______thanthecommonseacucumber.A
Certainlynocreatureintheseais【C1】______thanthecommonseacucumber.A
Certainlynocreatureintheseais【C1】______thanthecommonseacucumber.A
随机试题
[originaltext]Inurbanareas,carproducesthousandsoftonesofleadinthe
Awkward!NinestickyworksituationsandhowtofixthemDeali
[originaltext]M:Excuseme,wouldyoupleasetellmewhenthenextflighttoLo
Whyshouldthepricesbeincreased?Becausethepricesoftherawmaterialshave
Whichofthefollowingstatementsistrue?[br]Itcanbeinferredfromthelate
光纤的作用是将光发射机发出的已调光信号,经过光纤光缆的远距离传输后,耦合到光接收
“剪贴板”是();在Windows资源管理器中,要恢复误删除的文件,可以按下(
维生素D缺乏性佝偻病冬春季多见的病因是A.食物中维生素D不足 B.婴儿食物中钙
米力农治疗心力衰竭时的最大剂量为A、0.73mg/kg B、0.83mg/k
通过钢结构油漆表面返锈因果分析图,来自环境的原因主要有()。A.工作表面潮湿
最新回复
(
0
)