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  3. First Self-contained Heart Implanted A patient on the brink(边缘)of death has received the world’ s first self-contained artif

First Self-contained Heart Implanted A patient on the brink(边缘)of death has received the world’ s first self-contained artif

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问题                 First Self-contained Heart Implanted
    A patient on the brink(边缘)of death has received the world’ s first self-contained artificial heart—a battery-powered device about the size of a softball that runs without the need for wires, tubes sticking out of the chest.
    Two surgeons from the University of Louisville implanted the titanium(钛)and plastic pump during a seven-hour operation at Jewish Hospital Monday. The hospital said the patient was "awake and responsive" Tuesday and resting comfortably. It refused to release personal details.
The patient had been expected to die within a month without the operation, and doctors said they expected the artificial heart to extend the person’ s life by only a month. But the device is considered a major step toward improving the patient’ s quality of life.
    The new pump, called AbioCor, is also a technological leap from the mechanical hearts used in the 1980s, which were attached by wires and tubes to bulky machinery outside the body. The most famous of those mechanical hearts, the Jarvic-7 , used air as a pumping device and was attached to an apparatus about the size of a washing machine.
    " I think it’ s potentially a major step forward in the artificial heart development," said Dr. David Faxon, president of the American Heart Association. However, he said the dream of an implantable, permanent artificial heart is not yet a reality. "This is obviously an experimental device whose long-term success has to be demonstrated.
    Only about half of the 4,200 Americans on a waiting list for donor hearts received them last year, and most of the rest died. Some doctors, including Robert Higgins, chairman of cardiology at the Medical College of Virginia in Richmond, said artificial hearts are unlikely to replace donor hearts.
    "A donor heart in a good transplant can last 15 to 30 years. " he said, "It’ s going to be hard to replace that with a machine. "
The first two paragraphs tell that the self-contained artificial heart______.
选项 A、had brought the patient to the brink of death
B、did not need to get power from outside the body
C、was made of titanium and pump
D、was invented by two surgeons from the University of Louisville
答案B
解析 由文章第一段的内容可知，世界首个独立人工心脏是一种自带电池的装置，无需用电缆和导管从胸腔外获取电力，故B项正确。人工心脏是由钛和塑料制成，而非钛和泵，故C项错误。A、D项均不符合题意。
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