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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
2014-04-23
20
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.
From the passage we know that Symbion Inc. ______.
选项
A、has been banned by the government from producing artificial hearts
B、will review the effects of artificial hearts before designing new models
C、may continue to work on new models of reliable artificial hearts
D、can make new models of artificial hearts available on the market in 10 to 20 years
答案
C
解析
本题是一道具体细节题。根据题干中的提示词Symbion Inc.,我们利用查阅式阅读法,很快便可以在文章的第二段中找到相关信息。这一段指出,美国食品和药物管理局撤销当初对生产人造心脏的许可对制造Jarvik-7的Symbion公司是一种打击,但不会消除人们对人造心脏的需求。Jarvik一7遭禁的一个原因,是由于用以连接人造心脏和外部电源的通道容易引起感染。为了克服这一缺点,现在研制的人造心脏的电源体积小,可与人造心脏一并植人人体。然而,这种人造心脏的样品还要等10年或20年才能投入使用。由此,我们可以推断出本题的正确答案应该是C“此公司可能会研制新型的、可靠的人造心脏”。
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