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
Just seven years ago, the Jarvik-7 artificial heart was being cheered as the model of human creativeness. The sight of Barney Cl
Just seven years ago, the Jarvik-7 artificial heart was being cheered as the model of human creativeness. The sight of Barney Cl
admin
2012-12-26
22
问题
Just seven years ago, the Jarvik-7 artificial heart was being cheered as the model of human creativeness. The sight of Barney Clark—alive and conscious after trading his diseased heart for a metal-and-plastic pump— convinced the press, the public and many doctors that the future had arrived. It hadn’t. After monitoring production of the Jarvik-7, and reviewing its effects on the 150 or so patients (most of whom got the device as a temporary measure) the U.S. Food and Drug Administration concluded that the machine was doing more to endanger lives than to save them. Last week the agency cancelled its earlier approval, effectively banning (禁止) the device.
The recall may hurt Symbion Inc., maker of the Jarvik-7, but it won’t end the request for an artificial heart. One problem with the banned model is that the tubes connecting it to an external power source created a passage for infection. Inventors are now working on new devices that would be fully placed, along with a tiny power pack, in the patient’s chest. The first sample products aren’t expected for another 10 of 20 years. But some people are already worrying that they’ll work—and that America’s overextended health-care programs will lose a precious $2.5 billion to $5 billion a year providing them for a relatively few dying patients. If such expenditures (开支) cut into funding for more basic care, the net effect could actually be a decline in the nation’s health.
The word "them" in Line 6, Para. 2 refers to ______.
选项
A、doctors who treat heart diseases
B、makers of artificial hearts
C、America’s health-care programs
D、new models of artificial hearts
答案
D
解析
从句子意思看,“向为数不多的濒危病人提供”的显然是上一句中的sample products,即可与电源组一并植于人体内的new devices,故选D。
转载请注明原文地址:https://kaotiyun.com/show/24w7777K
0
大学英语四级
相关试题推荐
A、Shehastroublegettingalongwiththeprofessor.B、Sheregretshavingtakenupmuchoftheprofessor’stime.C、Sheknowsthe
A、Standinthequeue.B、Waitforafreecomputer.C、Askhistutortorecommendhimsomebooks.D、Usethecomputertofindthene
A、Toshowgoodwilltosociety.B、Tousetheminadvertisements.C、Toshowoffitsfinancialstrength.D、Toshowtheartisticta
Whenyouhavetomeetsomeonefromadifferentculture,beprepared.Ifyouunderstandculturaldifferences,you’llbeabetter
Gettingagoodnight’ssleephaslongbeenknowntoconsolidatetheday’smemories,movingthemfromshort-termstorageintolon
PerhapslikemostAmericansyouhavesomeextrapoundstoshed.Youmayevenhavetriedafad(时尚)dietortwo,butfoundyourse
PerhapslikemostAmericansyouhavesomeextrapoundstoshed.Youmayevenhavetriedafad(时尚)dietortwo,butfoundyourse
Atabriefingheldyesterdaytooutlineplansforanundergroundrepository(贮藏处)forhigh-activitynuclearwasteintheUnited
Justsevenyearsago,theJarvik-7artificialheartwasbeingcheeredasthemodelofhumancreativeness.ThesightofBarneyCl
ArtificialIntelligence(AI)Weoftendon’tnoticeit,butartificialintelligence(AI)isallaroundus.Itispresentinc
随机试题
A.尿镜检红细胞满视野B.尿镜检白细胞满视野C.尿外观正常,镜检可见各种管型D.尿外观酱油色,隐血试验(+)E.尿外观深黄色,含大量胆红素阵发性睡眠性血红蛋白尿【】
慢性肾衰竭尿毒症期血Cr应>5mg/dl、血BUN应>55mg/dl。()
痰饮病,症见咳逆喘满不得卧,痰呈白沫量多,经久不愈,天冷受寒加重,发则寒热,背痛,腰痛,苔白滑,脉弦紧。辨证应属()
背景材料:在某桥梁总体施工完毕后,对其进行检测时,某技术人员制定了如下的桥梁总体检测项目:(1)桥梁的净空;(2)桥面中心偏位和桥面宽度;(3)引道中心线与桥梁中心线的衔接以及桥头高程衔接。其中对检测的要求
()属于中央银行作为“政府的银行”职能范畴。
股份制是资本集中的一种形式。在我国,实行股份制有利于()
Niceguysknewit,nowtwostudieshaveconfirmedit:badboysgetthemostgirls.Thefindingmayhelpexplainwhyanastysuit
将表结构为(职工号,姓名,工资)的表Employee中所有职工的工资增加20%,正确的SOL命令是
Itwasnot"thecometofthecentury"expertspredicteditmightbe.However,Kohoutekhasprovidedabonanzaofscientificinfor
Children’sHealthcareofAtlantawantstomoveGeorgiaoutofthetop10listforchildhoodobesity(肥胖)by2016,officialssaid.
最新回复
(
0
)