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
41
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] 【C9】
选项
A、With
B、Like
C、As
D、Being
答案
C
解析
分析分句之间的关系可知,此处需要表示因果关系的连词。with和like都是介词,being在主从句中主语一致的情况下才可引导原因分句,且此处需要的是连词,因此只有C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3189748.html
相关试题推荐
Celebrityworshipisnowintherisingandsomeyoungsterscannotresistjump
Asoneoftheyoungestprofessorsintheuniversity,Longfellowiscertainlyon
Clothingmadeofplasticfibershascertainadvantagesover______madeofnatur
Generallyspeaking,______immigrantscannottotallycutthetiewiththeirmoth
AfterwatchingthatmovieabouttheAnti-JapaneseWar,peoplecannothelpbut__
Sheremainsconfidentand______untroubledbyourpresentproblems.A、indefinite
Ourscientificfindingscannotberegardedas______insuchashortperiodoft
Somepeopleeither______avoidquestionsofrightandwrongorjustremainneut
Generallyspeaking,______immigrantscannottotallycutthetiewiththeirmoth
Certainlynocreatureintheseais【C1】______thanthecommonseacucumber.A
随机试题
[originaltext]Goodmorning,everyone.Today,I’dliketotalkabouttherel
Onaverage,Americankidsaged3to12spent29hoursaweekinschool,eigh
知识多了,智力自然就提高了。
在进行月(季)度成本分析时,如果发现是属于预算定额规定的“政策性”亏损,则应该(
以下关于风险容忍度的说法错误的是( )A.投资者的风险容忍度取决于其承担风险的
Thechangeinthatvillagewasmiraculou
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
通过化学方法得到的小分子药物为A.化学合成药物 B.天然药物 C.生物技术药
税务师代建个体工商户简易账,按照制度规定除设置简易会计科目核算外,还要按月编
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)