首页
登录
职称英语
Cells cannot remain alive outside certain limits of temperature, and much na
Cells cannot remain alive outside certain limits of temperature, and much na
游客
2025-04-08
36
管理
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】_________. [br] 【C9】
选项
A、With
B、Like
C、As
D、Being
答案
C
解析
逻辑关系。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,只有as符合句意。故答案为C。
转载请注明原文地址:https://tihaiku.com/zcyy/4031552.html
相关试题推荐
HisaccountofhisexperienceinAntarcticcannotbedismissedas______.A、unfair
Cellscannotremainaliveoutsidecertainlimitsoftemperature,andmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperature,andmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperature,andmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperature,andmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperature,andmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperature,andmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperature,andmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperature,andmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperature,andmuchna
随机试题
下面你将听到一段有关核安全问题的讲话。[originaltext]上个世纪,原子的发现和核能的开发利用给人类发展带来了新的动力,极大增强了我们认识世界
[originaltext]W:Hey!Yougotanewtelevision.M:Yeah!Itwasdeliveredyeste
十六大党章规定的党的纪律处分有()A.四种 B.五种 C.六种
以下哪项描述与强度差异有关A.N2O的MAC最大,甲氧氟烷的MAC最小 B.舒
患儿男,7岁。出生后即发现右侧外耳畸形,无外耳道。为求改善外观,要求手术治疗重建
材料题 根据以下材料,回答85-88题 某生物制药公司年销售净额280万元,
商品归类题 表面镀铬的铜制浴缸用水龙头(2004年)()
编码方案是指设置具体的编码规则,包括编码级次、各级编码长度及其含义。()
聚乙烯管道吹扫口直径与管道同径,则末端管道的公称直径dn应小于()mm。A.1
扩张型心肌病() A.超声心动,左室径65mm B.超声心动IVS:LVP
最新回复
(
0
)