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注：指代题 35. Some people feel that _________. A) artificial hearts are seldom effective B) the country should not spend so much money on artificial hearts C) the country is not spending enough money on artificial hearts D) Americas health-care programs are not doing enough for the nations health Questions 31 to 35 are based on the following passage: 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 hadnt. After monitoring production of the Jarvik-7, and reviewing its effects on the 150 or so patients 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. 注：1.cheer 欢呼、喝彩 2.convince 使相信 3.monitor 监视 4.review 回顾 5.the U.S. Food and Drug Administration 美国食物药品管理局简写FDA ●成果型文章： 1.文章中只有一个成果，作者正评价 | 
