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
外语
Vision Human vision like that of other primates(灵长类) has evolved in an arboreal(丛林) environment. (46) In the course of
Vision Human vision like that of other primates(灵长类) has evolved in an arboreal(丛林) environment. (46) In the course of
admin
2011-01-06
25
问题
Vision
Human vision like that of other primates(灵长类) has evolved in an arboreal(丛林) environment. (46)
In the course of evolution, members of the primate line have acquired large eyes while the nose has shrunk. (47) Of mammals(哺乳动物) only humans and some primates enjoy color vision. (48) Horses live in a single-color world.
Light visible to human eyes, however, occupies only a very narrow band in the whole electro magnetic spectrum(光谱). Ultraviolet rays(紫外线)are invisible to humans though ants and honey bees are sensitive to them. (49) The world would look terribly different if human eyes were sensitive to infrared radiation(红外线). Then instead of the darkness of night, we would be able to move easily in a strange shadow less world. (50)
The color sensitivity of normal human vision is rarely surpassed even by complicated technical devices.
A. Humans have no direct perception of infrared rays.
B. In the dense complex world of a tropical forest, it is more important to see well than to de velop an acute sense of smell.
C. That gives the eye a wilder view.
D. The red flag is black to the bull.
E. There are different mammals in tropical forest.
F. In this world, objects glowed with varying degrees of intensity.
选项
答案
F
解析
前一句说(如果人类能看到红外线)we would be able to move easily in a strange shadowless world.选项F是对这个假设的世界进一步的描述。
转载请注明原文地址:https://kaotiyun.com/show/cH1d777K
本试题收录于:
职称英语卫生类C级题库职称英语分类
0
职称英语卫生类C级
职称英语
相关试题推荐
Whilestillinitsearlystages,welfarereformhasalreadybeenjudgedagreatsuccessinmanystates,atleastUNisgettingp
WildBillDonovanwouldhavelovedtheInternet.TheAmericanspymasterwhobuilttheOfficeofStrategicServicesinWorldWar
Amulticulturalpersonissomeonewhoisdeeplyconvincedthatallculturesareequallygood.【R1】______Andmostlikelyhehasbe
1.TheAmericanbabyboomafterthewarmadeunconvincingadvicetothepoorcountriesthattheyrestraintheirbirth.However,
Imagingbeingaskedtospendtwelveorsoyearsofyourlifeinasocietywhichconsistedonlyofmembersofonesex.【R1】______U
1.Theterm"jointinternationalbusinessventure",jointventureforshort,hascometomeanmanythingstomanypeople.Itsom
1.Fewsocialproblemshaveincreasedsosuddenlyorbeendramatizedsoeffectivelyastheplightofthehomelessinthe1980sa
Youseethefollowingnoticeinaninternationalmagazine.BesomeonefamousforadayIfyoucouldchangep
StomachUlcerStomachulcersarethecauseofseverepainformanypeople.Doctorshavebeenabletohelplessenthepainofulc
WhyDoManyFemaleAthletesFallVictimtoKneeInjuries?RebeccaLobo,abasketballstar,grabbedareboundduringthefirst
随机试题
Thebuilding______mostlyundamagedaftertheearthquake,andonlyminorrepairswerenecessary.
作为历史唯物主义范畴,人民群众是指()
医德良心对每个医务人员有
OCP运输是国际多式联运方式。()
在课堂教学中,通过教师、学生、文本材料之间的相互交流与沟通,有效地实现教学目标的行为方式是()。
无违约息票债券收益率曲线信息如下:3年期年息票利率10%(按年付)面值为1000元,计算无违约债券价值。
甲贩运假烟,驾车路过一检查站时,被工商部门拦住检查,检查人员朱某正登车检查时,甲突然发动汽车夺路而逃,朱某抓住汽车把手不放,甲为摆脱朱某,在疾驶后突然急刹车,朱某被摔在地上,头部着地死亡。甲对朱某死亡的心理态度是()。
ThelowerhouseofAustralia’sParliamentpassedsweepingchangesinimmigrationpolicyonWednesdaythataremeanttodiscourag
(2013上项管)项目经理在某项目实施阶段的中期发现,由于未预料到的变更,项目经费要花光了,此时应______。
TheNationalWeatherCentre’smostrecentcustomersareGilesMiltonsaysthatthelocalgovernment
最新回复
(
0
)