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
2016-01-30
30
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】_________.
【C4】
选项
A、between
B、for
C、with
D、around
答案
B
解析
介词用法。for的用法很多,表示所属关系或用途,意为“为、适于……的”。故答案为B。
转载请注明原文地址:https://kaotiyun.com/show/TGGO777K
0
考博英语
相关试题推荐
(上海理工大学2006年试题)Inatelephonesurveyofmorethan2,000adults,21%saidtheybelievedthesunrevolved(旋转)aroundtheearth
Tofightagainstcomputercrimes,acomputersystemneedsasurewayofidentifyingitsrightusersandrejectingthosewhoare
Chooseoneappropriatewordfromthefollowingwordbanktofillintheblanknumberedfrom91to105inthepassagebelow.Chan
Today,theTowerofLondonisoneofthemostpopulartourist【C1】______andattractsoverthreemillionvisitorsayear.Itw
Today,theTowerofLondonisoneofthemostpopulartourist【C1】______andattractsoverthreemillionvisitorsayear.Itw
Theserviceoperates36librariesthroughoutthecountry,whilesix_____librariesspeciallyservethecountryside.
Itisapleasuretoseemenofacertainageworryingabouttheirweight.Listeningtothemisnotsuchapleasure.Becausethe
在角色没有明显划分、家务或多或少由双方共同承担的家庭中,男尊女卑的观点很难维持的。在这种家庭长大的孩子比他们的父母更容易接受平等的观念,并做好充分准备去加入一个合作的而不是“性别大战”的社会。
OnthemorningofSeptember11th,IboardedthetrainfromWashingtonHeightsinUpperManhattanjustasusualandwenttotheB
______ofthePennsylvaniaGazette,BenjaminFranklintriedhardtomaketheperiodicalpopular.
随机试题
A.磁共振成像B.CT扫描C.骨ECTD.活检E.免疫组化鼻腔及鼻窦恶性肿瘤的最准确的诊断手段是
老年女性,突发右上腹疼痛,向肩部放散,发热、寒战。查体:T39℃,巩膜黄染,心肺未见异常,右上腹肌紧张,压痛,反跳痛。最可能的诊断是
A.身体无特殊不适而定期两个月来潮一次者 B.三个月来潮一次者 C.一年一行者 D.终生不潮而能受孕者 E.妊娠早期仍按月有少量阴道流血,但无损胎儿者“居经”指的是
[2012年第63题]下列哪类人员具有参加一级注册建筑师考试的资格?
背景资料:某施工单位承接了某高速公路路基H合同段工程施工,该区段设计车速100km/h,平均挖深19m,路基宽度26m,其中K20+300~K20+520为石质路堑。该区段岩石为石炭系硅质灰岩,岩石较坚硬,多为厚层构造,局部呈薄层状构造,裂隙发育
注册消防工程师职业道德原则的特点不包括()。
被审计单位在经营方面存在的可能导致对持续经营假设产生重大疑虑的事项或情况主要包括()。
“字字写来都是血,十年辛苦不寻常”和“文不甚深,言不甚俗”分别讲的是中国古典文学中的()。
知识产权一般都具有法定的保护期限,一旦保护期限届满,权力将自行终止,成为社会公众可以自由使用的知识。(11)受法律保护的期限是不确定的,一旦为公众所熟悉,即成为公众可以自由使用的知识。
Assuburbsgrew,businessesmovedintothenewareas.Largeshoppingcentrescontainingagreatkindofstoreschangedcon-
最新回复
(
0
)