首页
登录
职称英语
A new study suggests that the close interspecies bond that exists between hu
A new study suggests that the close interspecies bond that exists between hu
游客
2024-01-31
57
管理
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 [br] 【C6】
选项
答案
I
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3410464.html
相关试题推荐
InLondon,overhalfofthehomesbuiltbetween1919and1980hadonegarage
InLondon,overhalfofthehomesbuiltbetween1919and1980hadonegarage
微电影的长度从3分钟到半小时不等。Amicrofilmcanlastanywherebetweenthreeminutestohalfan
[originaltext]Tradebetweendifferentcountriesisoneofthemostimportan
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Todaywetalkaboutthedifferencebetweenacollegeandauniversity.Colle
Anewstudysuggeststhatthemoreteenagerswatchtelevision,themorelike
随机试题
Thefactthatblindpeoplecanseethingsusingotherpartsoftheirbodiesa
Researcherssaiditwasclearthattheworld’soceansplayamajorroleinq
[originaltext]W:Hi,David.(12)There’sanewgymopeningintowntoday.Would
单层砖柱厂房结构只能适用于下列哪一项所示的设防烈度区?()A.设防烈度7度(
A.休息,低蛋白饮食,控制液体量,纠正电解质和酸碱平衡紊乱 B.休息,低盐,限
器质性二尖瓣狭窄的特点是A.呈主动脉型,左心室增大 B.常有心房颤动 C.无
疥疮的传染是A.动物和人都长疥疮,不相互传染 B.动物不长疥疮 C.人的疥疮
材料一西藏自治区位于青藏高原西南部,地理环境独特,资源丰富。近年来,西藏经济建设
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
甲有二子乙和丙。乙离家出走,经法院依法判决宣告死亡。后甲病故,遗产由丙继承。甲病
最新回复
(
0
)