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
In 1954 a turning point in medical history, resulting from applied bionics, was the first" open heart" surgery done in Minneap
In 1954 a turning point in medical history, resulting from applied bionics, was the first" open heart" surgery done in Minneap
admin
2011-01-21
59
问题
In 1954 a turning point in medical history, resulting from applied bionics, was the first" open heart" surgery done in Minneapolis, Minnesota, by Dr. W. Lillehei’ s techniques for the first time allowed the patient to be operated on while blood was supplied to the patient from a donor. Today "open heart" surgery ,using more complicated methods and bionic devices, is common in the United States.
Important technological advances such as those already mentioned have encouraged scientists to develop the artificial heart. Early in 1983,in its first use by a human patient, a medical team at the University of Utah Medical Center replaced the diseased heart by a Jarvik-7.
The world watched amazed as television pictures of Dr. Clark showed him as he improved steadily after the surgery. His continued life demonstrated that a bionic device could imitate the action and function of a healthy heart. Dr. Clark lived for 112 days.
Life-like or bionic machines have existed for several centuries. The development of tools by man’ s ancestors is a good example of the application of bionics to extend human capabilities. Modern bionic research is especially involved in prosthetics devices that substitute for, or replace lost or diseased body parts such as arms ,legs ,and eyes.
Recent advances in electronics have enabled scientists to make better use of electrical impulses in the control of prosthetic devices. One interesting research project is the development of an artificial eye in which video signals are transformed into light patterns that are sent into nerve receptors in the patient.
The future for applied bionics seems to be promising. Existing bionic devices will become smaller, faster, and more effective. The artificial heart used for Dr. Clark is only one of experimental replacement devices. It is likely to be joined in the future by replacements for other internal systems or organs. Bionic livers, stomachs, and lungs are not impossibilities!
The control of artificial devices is improving because _____________.
选项
A、video signals can be transformed into light patterns
B、bionic machines have existed for centuries
C、artificial devices such as arms, legs and eyes require better control than bionic machines
D、science has made great advances in electronics
答案
D
解析
由文章最后一段可知选D。
转载请注明原文地址:https://kaotiyun.com/show/Lm3d777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
Takinganapisfrowneduponbymanypeopleandisviewedasfondnessfortheelderlyandchildren.Mentionnapandyoucouldbe
Whydoesthespeakersaythatradiationissimilartoradiowaves?
Duringthe1980s,unemploymentandunderemploymentinsomecountrieswasashighas90percent.Somecountriesdidnot21enough
Beingamanhasalwaysbeendangerous.Thereareabout105malesbornforevery100females,butthisratiodropstonearbalan
Beingamanhasalwaysbeendangerous.Thereareabout105malesbornforevery100females,butthisratiodropstonearbalan
Accordingtothespeaker,whatshouldthelistenersdoassoonaspossible?
Whatisthesubjectofthisconversation?
Sometimeago,Idiscoveredthatoneofthechairsinmyfronthallhadabrokenleg.Ididn’tforeseeanygreatdifficultyi
Americaischangingitseatinghabits.【C1】______medicalevidencemountsthatweare【C2】______aboutwhatweeat,consumingaheal
随机试题
像素图的图像分辨率是指单位长度上的像素数量。
某机组用联轴器联接两个转子,轴系找中轴线偏差示意如图4-2所示。测得数据如下: 0°时,B′1=0.05mm,B″1=0.02mm,A1=0; 90°时,B′2=0.04mm,B″2=0.01mm,A2=0.04mm; 180°时,B′3=0.03m
患者男,39岁,干部。2005年元月初下乡居住在老乡家中,因天气寒冷,老乡为其室内生炭火,次日发现昏迷在床上,急送当地医院就诊。既往身体健康,无脑外伤及抽搐病史,无高血压史,无烟酒嗜好,无精神失常史等。体检:意识丧失,无自主运动,对外界刺激元反应,呼之不应
诊断Χ线机准直器的作用,错误的是
下列不属于职业危害的是()。
评价企业短期偿债能力强弱最可信的指标是()。
被视为五岳之首的泰山主峰玉皇顶海拔约为()。
()是一切教育工作的出发点,它是实现教育活动的归宿。它贯穿于教育活动的全过程,对一切教育工作都具有指导意义。
衡量教师是否成熟的重要标志是()。
Itiscustomaryforadultstoforgethowhardanddullandlongschoolis.Thelearningbymemoryofallthebasicthingsonemu
最新回复
(
0
)