首页
登录
职称英语
[originaltext] It’s not known exactly bow or why humans domesticated the fir
[originaltext] It’s not known exactly bow or why humans domesticated the fir
游客
2025-01-18
30
管理
问题
It’s not known exactly bow or why humans domesticated the first dogs. But once tamed, people found them useful and they learned how to selectively breed for certain traits to create animals fit for specific task. Most likely, the first dogs were used for hunting and protection. Some were bred to chase down prey, others to herd livestock. Today’s most popular breed, the Labrador, was originally bred by fishermen to haul nets and retrieve fish. But at some point, humans also started to breed dogs for looks and for companionship. Brian has wondered why of all domesticated animals, dogs seem closest to their owners.
Somehow during the long relationship together, dogs learn how to communicate with humans. And they pass the skill down to each succeeding generation. It turns out puppies can understand human gestures even if they’ve been raised in the wild, while wolves raised in captivity just don’t get it. It’s a unique skill that perhaps only dogs possess.
选项
A、People know exactly how and why humans domesticated the first dogs.
B、People learned to selectively breed dogs for certain specific tasks.
C、Of all the domesticated animals, dogs seem closest to their owners.
D、Wolves raised in captivity still fall to understand human gestures:
答案
A
解析
需要把握细节信息,运用排除法。
转载请注明原文地址:http://tihaiku.com/zcyy/3917565.html
相关试题推荐
Butthat’sexactlywhatitfacedaftertheSovietUnioncollapsed.Livingcon
Butthat’sexactlywhatitfacedaftertheSovietUnioncollapsed.Livingcon
Butthat’sexactlywhatitfacedaftertheSovietUnioncollapsed.Livingcon
Butthat’sexactlywhatitfacedaftertheSovietUnioncollapsed.Livingcon
Butthat’sexactlywhatitfacedaftertheSovietUnioncollapsed.Livingcon
Butthat’sexactlywhatitfacedaftertheSovietUnioncollapsed.Livingcon
Butthat’sexactlywhatitfacedaftertheSovietUnioncollapsed.Livingcon
Likehumans,ratscanalsobecome______todrugsandunabletoextricatethemselv
[originaltext]下面你将听到一段介绍北京申奥功臣何振梁的讲话。7月13日晚,在莫斯科国际贸易中心,当国际奥委会主席萨马兰奇宣布北京获得2
[originaltext]下面你将听到的是一段有关海洋的讲话。海洋是全球生命支持系统的一个不可缺少的组成部分。海洋不仅是自然资源的宝库,同时也是我
随机试题
铁路运输企业在考虑运输产品组合时,主要采用( )。A.扩大产品组合策略 B.
下列行为中,超出国家审计机关权限的是:A.要求被审计单位提供预算或者财务收支计划
釉质钙化不全与浅龋的临床诊断区别在于A.前者由釉质脱矿造成,后者有细菌的作用
肾上腺素发挥舒张支气管平滑肌作用的受体是A.β1肾上腺素受体 B.β2肾上腺素
A. B. C. D.
属于膀胱镜检查禁忌证的是A.前列腺增生症 B.慢性细菌性前列腺炎 C.急性膀
短期融资企业多适合以场外的外汇衍生品作为风险管理的工具。( )
关于成交量、持仓量、价格三者之间的关系,以下说法正确的是()。A:成交量、持仓
某甲为耕田,到某乙的养牛场去购买1头牛。据此,请回答下列问题。 某甲与某乙共
企业如有盘盈的固定资产,应记入()账户。A、营业外收入 B、固定资产清理 C
最新回复
(
0
)