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
2017-03-25
40
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.
【C7】
选项
A、distractions
B、distances
C、moments
D、delays
答案
B
解析
本题需联系上下文判断。上句中提到鸽子有通过太阳星星、自我导航能力和嗅觉来找到方向。此处则表达鸽子的导航能力表现在它可以在长距离飞行或在某地的第次飞行中正确判别方向,因此答案为“distance”,故应选择B。
转载请注明原文地址:https://jikaoti.com/ti/tuyYFFFM
0
考博英语
相关试题推荐
Publicspeakingfillsmostpeoplewithdread.Humiliationisgreatestfear;self-exposureandfailingtoappealtotheaudience
【M1】TheeconomicgrowththatmanynationsinAsiaandincreasinglyAfricahaveexperiencedoverthepastcoupleofdecadeshast
Mostworthwhilecareersrequiresomekindofspecializedtraining.Ideally,therefore,thechoiceofan【C1】______shouldbemade
Citiesdevelopasaresultoffunctionsthattheycanperform,somefunctionsresultdirectlyfromtheingenuityofthecitizenr
Trafficstatisticspaintagloomypicture.Tohelpsolvetheirtrafficwoes,somerapidlygrowingU.S.citieshavesimplybuilt
Anypersonwhoisin______whileawaitingtrialisconsideredinnocentuntilhehasbeendeclaredguilty.
Paulisan______worker,andrarelydoeswellinexaminations.Howeverheoftenrefusesourhelp.
Therearesomanybadthingsaboutwomendrivers,Idon’tknowwheretostart.IguessIwillgettheballrollingbytalkingab
In1784,fiveyearsbeforehebecamepresidentoftheUnitedStates,GeorgeWashington,52,wasnearlytoothless.Sohehiredadent
Itwasexcitingtoseesuchamovieforfirsttime,butwesoonbecame_____whenourTVwasfloodedwithprogramsoflike-kind.
随机试题
A.在脊髓内交叉B.在延髓内交叉C.在脑桥交叉D.在中脑交叉E.在丘脑内交叉皮质脊髓束
散曲
格林-巴利综合征最具有特征性表现的是( )。
A.浮脉,缓脉,革脉,濡脉B.弱脉,长脉,濡脉,虚脉C.微脉,弱脉,濡脉,散脉D.洪脉,濡脉,芤脉,牢脉E.洪脉,浮脉,革脉,濡脉均具有脉搏无力特点的脉象是
基金管理人比普通投资者在风险管理方面具有的优势体现为()。Ⅰ.能较好地认识基金的性质、来源和种类Ⅱ.能较准确地度量风险Ⅲ.能按照自己的投资目标和风险承受能力构造有效的证券组合Ⅳ.能在市场变动时及时对投资组合进行更新
太平天国由盛转衰的标志是()。
=_____________.
【B1】【B9】
Bigcitestodayareconfrontedwithveryseriousproblems.Transportisa【C1】______difficulty:someplannersbelievein【C2】_____
Differentcountriesanddifferentraceshavedifferent(11).InChina,itisimportantforthehosttobeattentivetowardst
最新回复
(
0
)