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
医学
About ten men in every hundred suffer from color blindness in some way; women are luckier only about one in two hundred is affec
About ten men in every hundred suffer from color blindness in some way; women are luckier only about one in two hundred is affec
admin
2015-01-26
61
问题
About ten men in every hundred suffer from color blindness in some way; women are luckier only about one in two hundred is affected in this manner. There are different forms of color blindness. A man may not be able to see deep red.
He may think that red, orange and yellow are all shades of green. Sometimes a person cannot tell the difference between blue and green. In rare cases an unlucky man may see everything in shades of green—a strange world indeed.
In certain occupations color blindness can be dangerous and candidates are tested most carefully. For example, when fighting at night, soldiers use lights of flares to signal to each other. A green light may mean "Advance" and a red light may mean: "Danger! Keep back!" You can see what will happen if somebody thinks that red is green! Color blindness in human beings is a strange thing to explain. In a single eye there are millions of very small things called "cones". These help to see in a bright light and to tell the difference between colors. There are also millions of "rods" but these are used for seeing when it is nearly dark. They show us shape but not color. Wait until it is dark tonight, then go outside. Look round you and try to see what colors you can recognize.
Birds and animals which hunt at night have eyes which contain few or no cones at all, so they cannot see colors. As far as we know, bats and adult owls cannot see colors at all only light and dark shapes. Similarly cats and dogs cannot see colours as well as we can.
Insects can see ultra violet rays which are invisible to us, and some of them can even see X rays. The wings of a moth may seem grey and dull to us, but to insects they may appear beautiful, showing colors which we cannot see. Scientists know that there are other colors around us which insects can see but which we cannot see. Some insects have favorite colors. Mosquitoes like blue, but do not like yellow. A red light will not attract insects but a blue lamp will.
Among people who suffer from color blindness,______.
选项
A、some may see everything in shades of green
B、few can tell the difference between blue and green
C、few may think that red, orange and yellow are all shades of green
D、very few may think that everything in the world is in green
答案
D
解析
细节题。在第一段最后一句中作者说,在罕见的病例中,不幸的患者会把每一种色彩都当做是深浅不同的绿色。A、B、C的错误之处都在于对色盲人数多少的限定词some或few不够准确。
转载请注明原文地址:https://www.kaotiyun.com/show/fFT3777K
本试题收录于:
医学博士外语题库考研分类
0
医学博士外语
考研
相关试题推荐
Cultureshockmightbecalledanoccupationaldiseaseofpeoplewhohavebeensuddenlytransplantedabroad.Likemostailments,
Someonewhoisin______confinementiskeptaloneinaroominprison.
A、Thereducedconsumptionofeggs.B、Thedevelopmentofsubstituteeggs.C、Theimprovedwaysofcookingeggs.D、Theremovalofn
A、Sheshouldn’ttakeittooseriously.B、Sheshouldhaveregularmassage.C、Sheshouldexercisemoreandworkless.D、Sheshould
A、Nausea.B、Fever.C、Acold.D、Diarrhea.D通过对话中讲到的“Ifyourdiarrheaissofrequent”可知选项D正确。
Folkwisdomholdsthattheblindcanhearbetterthanpeoplewithsight.Scientistshaveanewreasontobelieveit.Researc
Theteacherexplainedthenewlesson______tothestudents.
CharlesPaulandhiswife,Hazel,stoppedusingthemotorhometheyboughtseveralyearsago;itsitsidlebehindtheirhousein
At9:00intheeveningonJanuary29,justasPresidentGeorgeW.BushwasabouttobeginhisfirstStateoftheUnionaddress,
A、Roomyandcomfortable.B、Nicebutexpensive.C、Cheapandcomfortable.D、Roomybutexpensive.B从“Thehotelwestayedatturned
随机试题
A、Theanchorwomanofaprogram.B、Thestaractressinthesoapopera.C、Thelandladyofalocalpub.D、Theproduceroftheprogr
关于大脑的描述,错误的是
被后世史家称为“睁眼看世界的第一人”的是:
小华是一个十分聪明的学生,他的最大特点就是贪玩,学习不用功。每次只能靠运气过关。这次期末考试他考得不理想,他认为这次是自己的运气太差了。作为教师,要引导合理归因,下列做法不妥当的是()。
在社会经济尚不发达时,传统建筑遭受的主要是自然的破坏。而在经济发展的起步阶段,人们急于改变物质生活条件,忽视精神生活的需要,对传统建筑的人为破坏大大超过自然的破坏。待经济发展到一定水平,价值观起了变化,进而追求精神生活的丰富时,传统建筑将重新受到重视。但是
领导骂你。因为你的一个数据错了。但数据是小王给你的,你对领导说什么?
从侵犯的方式上来看,侵犯可以分为_____________和_____________。
汽油酒精,顾名思义,是一种汽油酒精混合物。作为一种汽车燃料,和汽油相比,燃烧一个单位的汽油酒精能产生较多的能量,同时排出较少的有害废气一氧化碳和二氧化碳。以汽车日流量超过200万辆的北京为例,如果所有汽车都使用汽油酒精,那么,每天产生的二氧化碳,不比北京的
设(I)当a,b为何值时,β不可由α1,α2,α3线性表示;(Ⅱ)当a,b为何值时,β可由α1,α2,α3线性表示,写出表达式.
Accordingtothepassage,these119applicantsforHarvardBusinessSchoolwouldberejectedbecause______.Bysaying"Putitt
最新回复
(
0
)