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
2023-06-29
30
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] 【C7】
选项
答案
F
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2794199.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
Whethertheeyesare"thewindowsofthesoul"isdebatable;theyarein-(1
Scientistsfindthathard-workingpeoplelivemuchlongerthanaveragemena
引起乳糜尿最常见的原因是A.腹膜结核 B.肾病综合征 C.肾小管变性疾病
下列物质中,哪种是最强的氧化剂A.次氯酸钠 B.过氧化氢 C.过氧乙酸 D
临床上测定血清总蛋白首选的常规方法是()A.酶试剂法B.双缩脲法C.磺柳酸法D
免疫细胞产生、分化、成熟的场所是A.胸腺和淋巴结B.脾和胸腺C.淋巴结和脾D.胸
2015-广西-AA.2013年二季度,我国税收月收入同比增速逐步提高,分别为7
某建筑室内消火栓系统设置了2台消防水泵,1用1备,其出水管上应设置()。A.
关于技术进步对行业的影响,下列各项表述不正确的是()A:技术进步往往催生一个新的
由品德、资本、还款能力、抵押、经营环境构成,针对企业信用分析的专家系统是()。A
最新回复
(
0
)