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 new study suggests that the close interspecies bond that exists between humans and dogs may extend 27 000 or even 40 000 years
A new study suggests that the close interspecies bond that exists between humans and dogs may extend 27 000 or even 40 000 years
admin
2017-04-28
84
问题
A new study suggests that the close interspecies bond that exists between humans and dogs may extend 27 000 or even 40 000 years back. That’s a【C1】______jump from 11 000 to 16 000 years ago, when dogs were【C2】______thought to have split from their wolf ancestors.
Led by Harvard research fellow Pontus Skoglun, the authors of the study【C3】______DNA belonging to a 35 000-year-old Siberian wolf specimen. Their genomic analysis led them to【C4】______that the wolf was part of a population "that diverged from the common ancestor of present-day wolves and dogs very close in time to the【C5】______of the domestic dog lineage," according to an abstract.
That means domesticated dogs may have been hanging out with humans during that same era, more than 20 000 years ago. The【C6】______for this finding was the discovery of the ancient bone, the abstract notes: The researchers made these【C7】______based on a small piece of bone picked up during an expedition to the Taimyr Peninsula in Siberia. Initially, they didn’t realize the bone fragment came from a wolf at all; this was only【C8】______using a genetic test back in the laboratory. But wolves are common on the Taimyr Peninsula, and the bone could have easily【C9】______to a modern-day wolf. On a hunch, the researchers decided to radiocarbon date the bone anyway. It was only then that they realized what they had: a 35 000-year-old bone from an【C10】______Taimyr wolf.
A)ancient F)discoveries K)inventions
B)appearance G)dramatic L)preview
C)belonged H)examined M)previously
D)conclude I)impetus N)seldom
E)determined J)increasingly O)sudden
【C3】
选项
答案
H
解析
转载请注明原文地址:https://kaotiyun.com/show/OMi7777K
0
大学英语四级
相关试题推荐
经过了长期的缓慢发展之后,中国的城市正在突然迅速地向四面八方扩展开来。中国城市人口正在以每年7%的速度增长,而在某些大城市里则达到了每年增长10%。仅举一个可以看得见的例子,上海目前每小时要增加10栋楼房和100平方米的马路,而且这个速度近几年并不会减慢(
Forthispart,youareallowed30minutestowriteashortessayentitledTheCourageofNeverGivingUpbycommentingonthesa
ShouldPrivateCarsBeEncouragedinChina?1.小汽车进入中国家庭后给人们带来了舒适和方便2.小汽车也给人们带来了许多问题3.我的看法
A、Theyarenaturalandhealthyfood.B、Theyhelppeopleloseweight.C、Theyarelowestincalories.D、Theyarepopularwithmost
Forthispart,youareallowed30minutestowriteashortessayaboutaplacewhichyoulikemost.Youshouldstatethereasons
InLondon,overhalfofthehomesbuiltbetween1919and1980hadonegarage.Butmanyarebecomingneedless.Between2002and2
A、Eatsomethingelse.B、Loseweightsoon.C、Temptthemantoeatsomething.D、Buysomecandiesherself.B
Forthispart,youareallowed30minutestowriteashortessayonthefollowingquestion.Youshouldwriteatleast120words
A、Tourism.B、Businessstudies.C、Informationtechnology.D、English.B细节题。男士提到他主修商务。关键词“majorin”意为“主修”。B项正确。
随机试题
不是施工资料的是()。
原始生殖细胞起源于
做细菌培养时,采集标本的最佳时间是
除哪一项外均为新疆紫草的特征
关于女性生殖器肿瘤说法不正确的是
对于一些特殊商品,政府不允许当事人根据供给和需求自行决定价格,而是由政府直接为商品确定价格的浮动区间的,称为( )。
下列各项目中,属于货币性资产的有()。
【2015辽宁特岗】创造力
TheRoleofReligioninKoreanHigherEducationItiswidelybelievedthatreligioustraditions,suchasBuddhism,Confucia
A、Informchildrenofthefamily’sfinancialsituation.B、Shiftchildren’sattentiontointerestingactivities.C、Involvechildre
最新回复
(
0
)