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
43
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
【C10】
选项
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/YMi7777K
0
大学英语四级
相关试题推荐
中国的现代化建设必须从中国的实际出发。无论是革命还是建设,都要注意学习国外经验。但是照搬照抄别国经验、别国模式,我们不能取得成功。中国的事情要按中国的情况来办,要依靠中国人自己的力量来办。无论过去、现在和将来,独立自主,自力更生都是我们的立足点。任何国家不
全球化是描述全球社会时出现的一个术语,在这个社会中,世界上一个区域在经济、政治、环境、文化方面发生的事件会很快对世界其他地区的人们产生重大影响。全球化是通信、运输、信息科技发展的结果。它体现了连接个体、社区、公司以及各国政府问日益增长的经济、政治、科技和文
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
Forthispart,youareallowed30minutestowriteashortessay.Youshouldstartyouressaywithabriefdescriptionofthepi
Infact,evenwithouthumans,theEarth’sclimatechanges.Someclimatechangeis【C1】______.But,asgreenhousegasesareadded
Infact,evenwithouthumans,theEarth’sclimatechanges.Someclimatechangeis【C1】______.But,asgreenhousegasesareadded
Infact,evenwithouthumans,theEarth’sclimatechanges.Someclimatechangeis【C1】______.But,asgreenhousegasesareadded
Infact,evenwithouthumans,theEarth’sclimatechanges.Someclimatechangeis【C1】______.But,asgreenhousegasesareadded
Asmenage,theytypicallygetlessandlessdeepsleep—afactthatcould【B1】______theweightgainthatoften【B2】______middle
A、Shewillintroducearentalagentfortheman.B、Shesuggeststhemantobuyanapartment.C、Shewantstoaskhimsomequestio
随机试题
Allpossiblemeans________topreventairpollution,butitdoesn’tseemtomakemuchdifference.
生产商品的劳动二重性是()
尿道狭窄病人行尿道扩张时的护理措施不正确的是
颞下颌关节紊乱病与耳源性疾病鉴别的主要依据是
有爆炸危险的甲、乙类生产部位,宜设置在()。
我国采用的利润表格式是多步式利润表。
双符号位的作用是什么?它只出现在什么部件中?
Chronicinsomniaisamajorpublichealthproblem.Andtoomanypeopleareusing【C1】______therapies,evenwhilethereareafew
阅读以下说明,回答问题1~问题6,将答案填入对应的答案栏内。【说明】某公司在国际网互联中心申请了一个C类的IP地址210.45.12.0/24,域名为abc.com.cn,其DNS服务器的地址是210.45.12.103。该公司没有划分
A、Inthemiddleofhissleep.B、Whenheopenedthedoor.C、Justasheturnedoffthelight.D、Afterhewashedandwenttobed.A
最新回复
(
0
)