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
82
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] 【C10】
选项
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2794202.html
相关试题推荐
[originaltext]W:Hi,Jerry,Ifinditdifficulttosolvedisputesbetweenlover
BritishpsychologistshavefoundevidenceofalinkbetweenexcessiveIntern
BritishpsychologistshavefoundevidenceofalinkbetweenexcessiveIntern
BritishpsychologistshavefoundevidenceofalinkbetweenexcessiveIntern
InLondon,overhalfofthehomesbuiltbetween1919and1980hadonegarage
InLondon,overhalfofthehomesbuiltbetween1919and1980hadonegarage
InLondon,overhalfofthehomesbuiltbetween1919and1980hadonegarage
InLondon,overhalfofthehomesbuiltbetween1919and1980hadonegarage
Anewstudysuggeststhatthemoreteenagerswatchtelevision,themorelike
Anewstudysuggeststhatthemoreteenagerswatchtelevision,themorelike
随机试题
[originaltext]M:Excuseme,Iwonderifyoucouldhelpme?W:Ofcourse.Howca
[originaltext](22)Chinahasbecomethefirstcountrytoreceivemorethan1mil
WhatisCulture?Culture,inanthropology(人类学),the
谈判活动得以进行的前提条件是()。A.谈判各方自愿参加 B.各方利益大体平衡
经典的分子遗传学中心法则是A. B. C. D. E.
女性,48岁,右乳癌根治术后8年,咳嗽半年,3个月前胸片显示右上肺叶直径为2cm
患儿男,5岁。因面部水肿2周,诊肾病综合征收入院。现患儿阴囊皮肤薄而透明,水肿明
锭剂是A.含挥发性中药经水蒸气蒸馏制备而成的澄明液体制剂 B.铁砂经煅烧后吸附
多发性基底细胞痣综合征表现不包括A:多发性角化囊肿 B:皮肤基底细胞痣 C:
硝酸甘油与普萘洛尔合用产生的协同作用是A.增加心肌收缩力 B.加快心率 C.
最新回复
(
0
)