首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
Human vision, like that of other primates, has evolved in an arboreal environment. In the dense, complex world of a tropical for
Human vision, like that of other primates, has evolved in an arboreal environment. In the dense, complex world of a tropical for
admin
2022-02-24
17
问题
Human vision, like that of other primates, has evolved in an arboreal environment. In the dense, complex world of a tropical forest, it is more important to see well than to develop an acute sense of smell. In the course of evolution, members of the primate line have acquired large eyes while the snout has shrunk to give the eye an unimpeded view. Of mammals, only humans and some primates enjoy color vision. The red flag is black to the bull. Horses live in a monochrome world. Light visible to human eyes, however, occupies only a very narrow band in the whole electromagnetic spectrum. Ultraviolet rays are invisible to humans, though ants and honeybees are sensitive to them. Humans have no direct perception of infrared rays, unlike the rattlesnake, which has receptors tuned in to wavelengths longer than 0. 7 micron. The world would look eerily different if human eyes were sensitive to infrared radiation. Then, instead of the darkness of night we would be able to move easily in a strange, shadowless world where objects glowed with varying degrees of intensity. But human eyes excel in other ways. They are, in fact, remarkably discerning in color gradation. The color sensitivity of normal human vision is rarely surpassed even by sophisticated technical devices.
What does the passage mainly discuss?
选项
A、Ultraviolet rays.
B、Human vision.
C、Sight and smell.
D、The environment of primates.
答案
B
解析
文章第一句就点明整体,全篇讨论人类的视觉问题,因此,正确答案为B。
转载请注明原文地址:https://kaotiyun.com/show/sZra777K
本试题收录于:
翻译硕士(翻译硕士英语)题库专业硕士分类
0
翻译硕士(翻译硕士英语)
专业硕士
相关试题推荐
Atthebeginningof17thcenturyappearedaschoolofpoetscalledmetaphysics.________isthefounderofmetaphysicalpoetry.
PopstarstodayenjoyastyleoflivingwhichwasoncetheprerogativeonlyofRoyalty.Wherevertheygo,peopleturnoutinthe
PopstarstodayenjoyastyleoflivingwhichwasoncetheprerogativeonlyofRoyalty.Wherevertheygo,peopleturnoutinthe
PopstarstodayenjoyastyleoflivingwhichwasoncetheprerogativeonlyofRoyalty.Wherevertheygo,peopleturnoutinthe
Allowingourcitiestobe______bycarshasprogressivelyaffectedchildren’sindependentmobility,forchildrenhavelostmuch
Ihadneverseensomanypeoplewithsomanydisabilities.Ireturnedhome,silently______.thinkinghowfortunatewereallywe
Thelocalauthoritiesrealizedtheneedtomake______totelderlypeopleintheirhousingprograms.
Oriolesarearborealbirds,andwhentheydescendtotheground,itismainlytogethernestmaterials
Certainspeciesdisappearedorbecame______asnewformsarosethatwerebetteradaptedtotheEarth’schangingenvironment.
随机试题
患者,男,55岁。肝硬化伴大量腹水。入院后给予利尿剂治疗,腹水量明显减少,但患者出现了淡漠少言、反应迟钝、言语不清等症状。根据患者的情况,考虑可能出现了
下列各项,与急性肾炎的发病有密切关系的是()
甲自有城市房屋1间,2007年4月2日与乙签订一份为期3年的房屋租赁合同,由乙承租该房。同年9月8日丙向甲提出愿意购买该房屋,甲即将要出卖该房屋的情况告知了乙。到了12月9日乙没有任何答复,甲与丙协商以7万元的价格将该房屋卖给丙。双方签订了房屋买卖合同,丙
爬行的通货膨胀的特征有()。
制定租售方案的工作内容主要包括()。
Whenwewanttotellotherpeoplewhatwethink,wecandoitwiththehelpofwords.Wecanalsodoitinmanyotherways,too.
年满16周岁的公民小敏,以自己的劳动收入为主要生活来源。小敏可以视为:
甲贩运假烟,驾车路过某检查站时,被工商执法部门拦住检查。检查人员乙正登车检查时,甲突然发动汽车夺路而逃。乙抓住汽车车门的把手不放,甲为摆脱乙,在疾驶时突然急刹车,导致乙头部着地身亡。甲对乙死亡的心理态度属于下列哪一选项?
以下关于数据运算的叙述中,哪些是不正确的?Ⅰ.数据运算是数据结构的一个重要方面Ⅱ.数据运算定义在数据的逻辑结构上Ⅲ.数据运算定义在数据的物理结构上Ⅳ.数据运算的具体实现在数据的逻辑结构上进行Ⅴ.数据运算的具体实现在数据的物理结构上进行
Bythe1820’sintheUnitedStates,whensteamboatswerecommononwesternwaters,theseboatsweremostlypoweredbyenginesbu
最新回复
(
0
)