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
2023-12-01
12
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 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. [br] 【M3】
选项
答案
wide一wider
解析
语篇错误。根据上下文,此句意为“(与哺乳动物和鸟类相比)其他动物对体温变化的容忍度大一些。”前后句之间有比较的意味。所以应该用比较级wider,表示对比。
转载请注明原文地址:https://tihaiku.com/zcyy/3236340.html
相关试题推荐
[originaltext]M:Ofcourse,itistruetosaythattherearecertainelementsi
[originaltext]M:Ofcourse,itistruetosaythattherearecertainelementsi
[originaltext]M:Ofcourse,itistruetosaythattherearecertainelementsi
[originaltext]M:Ofcourse,itistruetosaythattherearecertainelementsi
Cellscannotremainaliveoutsidecertainlimitsoftemperatureandmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperatureandmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperatureandmuchna
Cellscannotremainaliveoutsidecertainlimitsoftemperatureandmuchna
IcametoAfricawithonepurpose:Iwantedtoseetheworldoutsidethepe
IcametoAfricawithonepurpose:Iwantedtoseetheworldoutsidethepe
随机试题
Therearetwoapproachestotranslating:first,youstarttranslatingsenten
接铲斗的额定载重量不同,装载机分为( )。A.小型 B.轻型 C.中型 D
健康风险评估报告,通常由一组报告组成,除了健康评估的结果以及危险因素列表外,同时
患者男,53岁。颅脑外伤2小时。查体:可正确回答问题,可自动睁眼,阅读障碍,右利
15岁,女,腹部叩诊移动性浊音(+),肛诊:左附件区触及新生儿头大实性肿瘤,血清
让空气栓塞病人取左侧并头高足低位,是为了避免气栓阻塞在A.主动脉入口 B.上腔
大型旅行社设立风险管理部和专职风险管理经理体现了旅行社风险管理方法中的( )。
不符合弗里德曼提出的世界城市指标的是()。A.主要金融中心 B.具有国际意
下列关于汇率变动对外汇储备影响的表述,正确的有()。A、从外汇储备的增量来看,
某工程,500kV母线穿越功率为2500MW,500kV母线短路参数:I"=2
最新回复
(
0
)