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
2012-07-17
109
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 the press, the public and many doctors convinced 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) in 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 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 or 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 cut into funding for more basic care, the net effect could actually be a decline in the nation’s health.
According to the passage, the Jarvik-7 artificial heart proved to be______.
选项
A、a technical failure
B、a technical wonder
C、a good life-saver
D、an effective means to treat heart disease
答案
A
解析
本题问本文论述的Jarvik一7人造心脏性能和效果最终证明是怎样的。根据文章第一段的内容,7年前,人们称赞Jarvik-7人造心脏是人类创造能力的典范。看到巴内克拉克在换了用金属和塑料做成的人造心脏后又活了、又有了意识,新闻界、公众和许多医生都以为未来世界已经成为现实。但是,经过对这种人造心脏的生产过程的进一步观察以及大约150人的试用后,美国食品和药物管理局的结论认为Jarvik-7人造心脏对生命的危害大于其拯救生命的作用,于是撤销了当初对生产Jarvik一7人造心脏的许可。因此,本题的正确答案应是A,即最终结果证明Jarvik一7人造心脏在技术上是一个失败。
转载请注明原文地址:https://www.kaotiyun.com/show/66XO777K
0
在职攻硕英语联考
相关试题推荐
Peoplesufferingfrom______prefertostayshutintheirhomesandbecomepanic-strickeninlargepublicbuildingsandopenfield
Thedegreeofeconomicgrowthisan______ofthelevelofliving.
Aperson’shomeisasmuchareflectionofhispersonalityastheclotheshewears,thefoodheeatsandthefriendswithwhomh
Aperson’shomeisasmuchareflectionofhispersonalityastheclotheshewears,thefoodheeatsandthefriendswithwhomh
AbudgetapprovedbytheEuropeanParliamentfortheEuropeanEconomicCommunitywasdeclaredadoptedTuesdaydespiteopposition
AbudgetapprovedbytheEuropeanParliamentfortheEuropeanEconomicCommunitywasdeclaredadoptedTuesdaydespiteopposition
Wright,acomputerscientist,isplottinganexperimentwithahumanoidrobotcalledNao.Heandhiscolleaguesplantointroduc
ThefirsteditionofThomasKuhn’s"TheStructureofScientificRevolutions"appearedin1962.【T1】Hisvisionrevolutionizedthe
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand
Justsevenyearsago,theJarvik-7artificialheartwasbeingcheeredasthemodelofhumancreativeness.ThesightofBarneyCl
随机试题
量子计算技术快速发展对现有的密码技术构成极大的威胁和挑战,一旦实用化量子计算出现,将导致基于离散对数、整数分解的公钥密码体制直接被快速________,意味着当前所使用的网络信息系统不再安全。为应对此类________威胁,美国和欧洲已经启动了抗量子计算攻
(多选):下列选项中,债务人可以将标的物提存的是()。
恶性黑色素瘤远处转移最常见的部位是
患者女,31岁。1年前因宫外孕出血输血1200mL,半年来出现发热,乏力纳差,多次检查ALT>200U/L,抗HCV阳性,HAVIgg抗体(﹢),抗HBsAg(﹢)。该患者最可能的诊断是
患者,男,50岁,1周来右侧后牙咬物不适,喝冷水引起疼痛。近2日来,疼痛影响睡眠,并引起半侧头、面部痛,疼痛不能定位。检查时见右侧上、下第一磨牙均有咬合面龋洞。为确定牙位应进行的检查是()
再生障碍性贫血时海洋性贫血时
关于月经的临床表现,下列哪项错误
1949年以来台湾政局发生的最为深刻的变动是()。
关于影响认知评价的因素,以下不正确的是()。
InOctober2002,GoldmanSachsandDeutscheBank【C1】______anewelectronicmarketforeconomicindicesthat【C2】______substanti
最新回复
(
0
)