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
Recent research from animal behaviorists suggests that "as the crow flies" should no longer be taken to mean "the shortest dista
Recent research from animal behaviorists suggests that "as the crow flies" should no longer be taken to mean "the shortest dista
admin
2019-08-27
48
问题
Recent research from animal behaviorists suggests that "as the crow flies" should no longer be taken to mean "the shortest distance between two points." Zoologists at Oxford University,【C1】______conducted an eighteen-month【C2】______of homing pigeons, have concluded that under some circumstances, pigeons follow【C3】______visual landmarks to find their way home【C4】______than taking the shortest, most direct route.【C5】______for their ability to navigate long distances, homing pigeons use the【C6】______of the sun and stars, their inbuilt compasses, and perhaps also their sense of smell to direct their flight over long【C7】______or on a journey for the first time.【C8】______, different factors appear to affect a pigeon’s navigation【C9】______it is released close to its【C10】______. Animal behaviorists reached this【C11】______after attaching small global positioning devices to the backs of pigeons and releasing them a few miles from their home. These devices enabled the scientists to【C12】______the precise location of each pigeon every second of【C13】______flight. Each pigeon was tracked for approximately twenty flights from the【C14】______point. For the first several flights, each bird’s path【C15】______significantly from the paths it had taken【C16】______. Subsequently,【C17】______, the bird would tend to follow the same path,【C18】______after flight, even though that path was not always the most direct route home. The scientists concluded that pigeons use a【C19】______of familiar visual landmarks to find their way when they are near their home rather than relying primarily on compass navigation. Major highways are one【C20】______landmark. Almost comically, some of the pigeons followed the path of a major highway they could see below them, turning where the road turned, and even following the circular path of the exit ramps.
【C14】
选项
A、same
B、actual
C、distant
D、home
答案
A
解析
此句表达的意思是在同一地点进行约20次放飞实验并做跟踪记录。实验进行了约20次,所以信鸽应该是从同一地点被带走做实验的,故答案为A。
转载请注明原文地址:https://kaotiyun.com/show/0OUO777K
0
考博英语
相关试题推荐
LeaksfromEdwardSnowden,asystem’sadministratorturnedwhistleblowerattheNationalSecurityAgency(NSA),America’ssignals
Sleepisanimportantpartofourlives.Wespendaboutone-thirdofourlivessleeping.Formillionsofpeople,【C1】______,gett
Scienceisadominantthemeinourculture.Sinceittouchesalmosteveryfacetofourlife,educatedpeopleneedatleastsome
Socialchangeismorelikelytooccurinsocietieswherethereisamixtureofdifferentkindsofpeoplethaninsocietieswhere
Coincidentwithconcernsabouttheacceleratinglossofspeciesandhabitatshasbeenagrowingappreciationoftheimportanceo
Ingeneral,oursocietyisbecomingoneofgiantenterprisesdirectedbyabureaucraticmanagementinwhichmanbecomesasmall,
Thefactthatsuperiorservicecangenerateacompetitiveadvantageforacompanydoesnotmeanthateveryattemptatimproving
Whatarethoseofuswhohavechosencareersinscienceandengineeringabletodoaboutourcurrentproblems?First,wecan
InMicrosoft’slatestattempttoreachouttobloggers,thecompanyrecentlygaveawayexpensivelaptopsloaded【C1】______itsnew
当今世界正在发生广泛而深刻的变化。由于经济全球化与信息化的发展,科学技术迅猛进步,世界变成了“地球村”。各国相互联系,相互依存,利益交融达到了前所未有的程度,需要携手应对的问题越来越多,互利合作的愿望越来越强,从某种意义上讲,世界已是一种“利益共同体”。
随机试题
下列项目中,属于中央银行资产业务的有()。
在相同质量材料的前提下,球形结构的容积最大、承压能力最强。
碳酸酐酶催化反应CO2+H20→H2CO3,在分类中此酶属于_______。
阴虚失眠不寐的临床选方
()的确定是解决向谁调查和由谁来提供资料的问题。
城市不仅是一个国家或者地区的政治、经济、文化、科技和教育中心,且已经成为经济增长的强大引擎。美国的纽约、芝加哥和洛杉矶三个城市群,日本的东京、阪神和名古屋三大城市群,以及中国的长三角、珠三角和环渤海三大城市群等等对本国经济的贡献率都在一半以上。______
折现率12%,初始投资600万,第一年税后现金流150万,一年后可观察投资的成败。若成功,继续每年税后现金流150万,从第二年开始持续9年。若失败,从第二年开始税后现金流为零,可收回初始投资500万。成功概率是40%,求NPV。
有甲、乙、丙三个学生,一个出生在北京,一个出生在上海,一个出生在武汉;他们中一个学国际金融,一个学工商管理,一个学外语。其中:Ⅰ.甲不是学国际金融的,乙不是学外语的。Ⅱ.学国际金融的不出生在上海。Ⅲ.学外语的出生在北京。
Peopleliketothinkthatlifewasbetterinthepast.Theairwascleaner,thewaterwasclearer,people【C1】______friendlier,
AccordingtopsychologistSharonDraper,ourclothingchoicescanabsolutelyaffectourwellbeing.Whenwewearill-fittingclot
最新回复
(
0
)