首页
登录
职称英语
Just seven years ago, the Jarvik-7 artificial heart was being cheered as the
Just seven years ago, the Jarvik-7 artificial heart was being cheered as the
游客
2025-03-24
4
管理
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. [br] The word "them" (Line 7, 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
本题是一道词汇含义类问题,只不过测试的是代词所指的内容。本题问第二段中第七行中代词them指代的是什么。利用查阅式阅读法并结合语法知识,我们知道能够做them的先行词的必须是复数名词,而代词them所在的上下文指出,但是现在已经有些人在担心,一旦这种新型人造心脏获得成功,美国覆盖面很广的医疗保健项目将不得不为少数危重病人花费25亿至50亿美元去购置这些昂贵的装置。在所给的四个选项中有可能做them的先行词的是选项C中的America’s healthcare programs和选项D中的new models of artificial hearts。从句子意思看,“向为数不多的濒危病人提供”的显然是前一句中的sample products,即可与电源组一并植于人体内的new devices。因此,本题的正确答案应该是D“提供新型的人造心脏”。
转载请注明原文地址:https://tihaiku.com/zcyy/4010748.html
相关试题推荐
Hewasbroughttoconsciousnesswhenthedoctorhad_____artificialrespiration.A
Justsevenyearsago,theJarvik-7artificialheartwasbeingcheeredasthe
Justsevenyearsago,theJarvik-7artificialheartwasbeingcheeredasthe
Artificialflowersareusedforscientificaswellasfordecorativepurpose
Artificialflowersareusedforscientificaswellasfordecorativepurpose
Artificialflowersareusedforscientificaswellasfordecorativepurpose
Artificialflowersareusedforscientificaswellasfordecorativepurpose
Artificialflowersareusedforscientificaswellasfordecorativepurpose
Between1897and1919atleast29motionpicturesinwhichartificialbeingswer
Artificialflowersareusedforscientificaswellasfordecorativepurpose
随机试题
货物移动了位置。Thecargohasshifted.
Readcarefullythefollowingexcerptonterm-timeholidayargumentsintheUK
在windows中,以下命令运行结果中不出现网关IP地址的是().A.arp
A.金黄色葡萄球菌 B.β-溶血性链球菌 C.大肠杆菌 D.脆弱杆菌 E
足月新生儿,女,体重3500g,出生后36小时出现皮肤巩膜黄染,血清总胆红素29
房地产经纪人预约客户看房时,应注意的事项有( )。A.约定具体的看房时间 B
首批应输入下述哪种混合液A、1、2含钠液 B、2、3、1含钠液 C、2、1含
有关单轨系统技术特征的表述,说法正确的有()。A.单向运输能力在1~3万人次
因出现股权分布发生变化导致连续()个交易日不具备上市条件的情形,公司在规定期限内
下列情形中,纳税人应当先向复议机关申请行政复议,对行政复议决定不服,可以再向人民
最新回复
(
0
)