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
专升本
Bionics is a recently developed branch of science, which has tremendous potential for improving the life of mankind in our conte
Bionics is a recently developed branch of science, which has tremendous potential for improving the life of mankind in our conte
admin
2007-12-30
72
问题
Bionics is a recently developed branch of science, which has tremendous potential for improving the life of mankind in our contemporary society. Bionics can be described as the study of systems in living creatures and the application of the knowledge gained from this study to the improvement of various kinds of man-made systems. The term bionics was coined around 1960, and much of what is known about the science of bionics has been discovered since about 1970.
Some researchers recently have studied the eyes of the common frogs and have discovered that a frog’s eyes only find moving things such as insect-shaped objects and large, threatening objects. As a result of studying the eyes of frogs, scientists have constructed a simple electronic model of a frog’s eyes which can track airplanes circling above an airport and then provide information to computer-run air traffic control systems. Someday such electronic eyes may provide the means to automatically guide automobiles by providing information about objects moving toward the automobile. Other scientists have studied the compound eyes of some insects and crabs and have built a seeing machine that is a simple model of the horseshoe crab eye.
The hearing of a number of creatures also has been studied extensively so that hearing machines can be developed. Bats have unusual hearing which can extend into the ultrasonic (超声的) range. The dolphin also has been studied extensively, and dolphins are able to navigate through water extremely effectively. Radar and sonar(声 纳) systems which are used to help ships and planes navigate have been based on the sonar systems of both bats and dolphins.
Scientists are interested in the eyes of frogs because______.
选项
A、frogs’ eyes are large and threatening
B、frogs’ eyes are extremely sharp
C、frogs have compound eyes
D、frogs can only see moving objects
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/omLC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Haveyou【B1】______askedyourselfwhychildrengotoschool?Youwillprobablysaythattheygo【B2】______theirownlanguagea
Thesestudiesgive______(leading)resultsbecausetheyhaven’tlookedatenoughcases.
Whenaconsumerfindsthathispurchasehasafaultinit,thefirstthingheshoulddoisto______.Thepassagetellsus______
A、Atabank.B、Atarailwaystation.C、Atanairport.D、Ataparking-lot.C
Acontractisanagreementbetweentwoormorepeople【71】onepersonagreestodosomethingbyaspecifieddateinreturnfors
Nowadaysmostcompaniesdon’tjudgeanemployeesimply根据其所受教育。
MostAmericansdon’tliketogetadvicefrommembersoftheirfamily.Whentheyneedadvice,theydon’tusually【61】peoplethey
(非英语类学生必做)Summerswithfatherwerealwaysenjoyable.Swimming,hiking,boating,fishingthedayswerenotlongenoughtoco
______madetheschoolproudwas______morethan90%ofthestudentshadbeenadmittedtokeyuniversities.
Thepolicehavecaughtthesuspectandheimmediatelyadmitted______hisbossonarainynightsevenyearsago.
随机试题
期望价值理论的提出者是()。
YoucanhardlyimagineBell______ameal.
10个月健康婴儿,其营养素需要量,下列哪项是不正确的
溃疡病穿孔后,最早出现的体征是
采用特殊结构的建设工程,( )提出保障工作人员安全和预防生产安全事故的措施建议。
“The survey report issued by the China Entry-Exit Inspection and Quarantine Association will be taken as final and binding upon
拟发行上市公司原则上应以租赁方式从主发起人或控股股东、国家土地管理部门取得合法土地使用权。()
下列说法正确的是()。
单位组织职工到内蒙某地休假,由你来组织策划前期筹备工作,你怎么做?
用一杯水去救一车着了火的柴而无济于事,谓之杯水车薪。如今在一些地方,通过新技术,只需一瓶矿泉水的水量,就能使一辆汽车洁净如新,不妨称之为“杯水车新”。“杯水车新”启示我们()。①要重视意识的能动性,真正做到一切从实际出发②我们要
最新回复
(
0
)