首页
登录
职称英语
Dogs were first domesticated from wolves at least 17,000 years ago, but perh
Dogs were first domesticated from wolves at least 17,000 years ago, but perh
游客
2023-09-06
23
管理
问题
Dogs were first domesticated from wolves at least 17,000 years ago, but perhaps as early as 150,000 years ago based upon recent genetic fossil and DNA evidence. In this time, the dog has developed into hundreds of breeds with a great degree of【36】. For example, heights at the【37】range from just a few inches to roughly three feet, and colors range from white to black, with reds, grays, and browns【38】in tremendous patterns.
Dogs are highly social animals and this similarity in their【39】behavioral system accounts for their trainability, playfulness, and ability to fit into human【40】and social situations. This has earned dogs a unique position in the【41】of interspecies relationships. The loyalty and【42】that dogs demonstrate as a part of their natural instincts are【43】to be reflections of the human idea of love and friendship, leading many dog owners to view their pets as full-fledged family members.【44】. Dogs play a variety of roles in society and are often trained as working dogs.【45】. In many countries, the most common and perhaps most important role of dogs is as a companion.【46】. [br]
Dogs were first domesticated from wolves at least 17,000 years ago, but perhaps as early as 150,000 years ago based upon recent genetic fossil and DNA evidence. In this time, the dog has developed into hundreds of breeds with a great degree of variation. For example, heights at the shoulder range from just a few inches to roughly three feet, and colors range from white to black, with reds, grays, and browns occurring in tremendous patterns.
Dogs are highly social animals and this similarity in their overall behavioral system accounts for their trainability, playfulness, and ability to fit into human households and social situations. This has earned dogs a unique position in the realm of interspecies relationships. The loyalty and devotion that dogs demonstrate as a part of their natural instincts are thought to be reflections of the human idea of love and friendship, leading many dog owners to view their pets as full-fledged family members. Dogs seem to view their human companions as members of their pack, and make few distinctions between their owners and fellow dogs. Dogs play a variety of roles in society and are often trained as working dogs. For dogs that do not have traditional jobs, a wide range of dog sports provide the opportunity to exhibit their natural dog skills. In many countries, the most common and perhaps most important role of dogs is as a companion. Dogs have lived with and worked with humans in so many roles that their loyalty has earned them the unique praise of man’s best friend.
选项
答案
variation
解析
由空前的of可推测,所填词应是名词。variation在此意为“差别,区别”。
转载请注明原文地址:https://tihaiku.com/zcyy/2990384.html
相关试题推荐
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
Dogswerefirstdomesticatedfromwolvesatleast17,000yearsago,butperh
随机试题
[img]2014m3x/ct_eyyjscz2013c_eyyjscd_0021_20138[/img]Ifyou【D1】______smooth
Architecturalmorphologyisthestudyofhowshiftingculturalandenvironme
TherewasatimewhenredmeatwasaluxuryforordinaryAmericans,orwasa
正常小儿尿蛋白的特点,下列哪一项是错误的()A.定量不超过100mg/k
悬挑式脚手架是指架体结构卸荷在附着于建筑结构的刚性悬挑梁(架)上的脚手架,用于建
校准是指在规定条件下的一组操作,第一步(),第二步()。A.在规定条件下确定
营养不良时患儿皮下脂肪消失的顺序为A:腹部、面部、躯干、臀部、四肢 B:面部、
根据《招标投标法实施条例》第27条的规定,下列关于标底及最高投标限价编制的表述,
下列关于数据分析的表述中,不正确的是()。A.数据分析能让注册会计师处理一个完
电线上风荷载昨计算是以风速V(m/s)的基本风压=W0=V2/16(kg?f/
最新回复
(
0
)