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
A、During the spring. B、During the courtship. C、During the winter. D、During breeding season. B
A、During the spring. B、During the courtship. C、During the winter. D、During breeding season. B
admin
2017-11-08
19
问题
Scientists have discovered a species of songbird that performs a tap dance so fast that it can’t be seen by the naked eye. Researchers from Japan and Germany slow down footages of the blue capped cordon-blue songbirds during courtship. Scientists have discovered that tap dance is in the courtship performance of both male and female cordon-blues. The next step for the researchers is to try and pick whether the birds mate is moved by the sight, the sound or the vibrations of this fancy foot work.
Such is the agility of the songbirds show stopping quickstep that could only be fully appreciated in super-slow motion.
1. When does the songbird perform a tap dance?
2. How can songbirds’ tap dance be seen?
选项
A、During the spring.
B、During the courtship.
C、During the winter.
D、During breeding season.
答案
B
解析
转载请注明原文地址:https://jikaoti.com/ti/XqUFFFFM
0
大学英语四级
相关试题推荐
Don’tletvacationsorbusinesstravelsideline(使退出)yourexerciseroutine.Physicalactivityisagreatwayto【C1】_____stressan
Forthispart,youareallowed30minutestowriteashortessayentitledOnUrbanWaterlogging(内涝)followingtheoutlinegivenb
一般而言,中国人的名字包括两部分:姓和名。据说,最初起铝字是为了便于称呼。《百家姓》(OneHundredSurnames)成书于北宋(theNorthSongDynasty)时期,所列姓氏共有504个。在汉族姓氏中,有19个是最为常用的,使用这1
Somehousesaredesignedtobesmart.Othershavesmartdesigns.AnexampleofthesecondtypeofhousewonanAwardofExcellen
TheNationalTrustinBritainplaysanincreasinglyimportantpartinthepreservationforpublicenjoymentofthebestthatis
Manyprivateinstitutionsofhighereducationaroundthecountryareindanger.Notallwillbesaved,andperhapsnotalldeser
Costly—sometimesabusive—creditcardsarebleedingmillionsofborrowerswhodidn’tknowwhattheyweregettinginto.Thebo
刺绣(embroidery)是中国的民间传统手工艺之一,有超过两千年的历史。刺绣就是用针线在织物上绣上(embroider)各种装饰性的图案。中国刺绣与养蚕业(sericulture)紧密相连,中国是世界上最早使用蚕丝的国家。刺绣的用途主要包括生活和艺术装
MyViewOnDrivingRestrictionsinBigCities1.大城市的交通拥挤问题越来越凸显2.有人提出通过车辆限行缓解交通压力,原因是…3.我的看法
Forthispart,youareallowed30minutestowriteashortessayentitledIsUniversityEducationUseless?followingtheoutline
随机试题
如图3,该作品的构图方式是()
化学需氧量(COD)反应了在一定条件下()。
A.可使前者吸收减少,活性减低B.可形成不溶性络合物,使口服吸收率减少C.可加重肝损害D.增加麦角中毒的风险E.疗效增强四环素类药与抗酸剂如碳酸氢钠合用时()。
属于嵌锁型粒料类路面基层或底基层有( )。
交易指令中,()是指执行时必须按限定价格或更好的价格成交的指令。
银行市场营销活动的微观环境包括()。
一般来说,金融工具具有基本特征有()。
十七大首次将“基层群众自治制度”纳人中国特色政治制度范畴,这是我党不断推进社会主义民主政治制度自我完善和发展的具体体现。除“基层群众自治制度”外,中国特色政治制度还包括()。①选举制度⑦人民代表大会制度③中国共产
ThespeakerthinksthattobeateacherismoredifficultthantobethepresidentoftheNEA.Thereisabiggapbetweenthee
Wearelookingforwardtohearingfromyouverysoon,andwewillkeepyouinformed,byphone,ofanynewdevelopments.
最新回复
(
0
)