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2008年6月大学英语六级AB卷答案(昂立版)

编辑:Fiona    来源:中国英语网    点击:16    日期:2008-07-05    

Living longer

Anthony Atala, director of the Wake Forest Institute in North Carolina, belives failing organs will be repaired by injecting cells into the body. They will naturally to straight to the injury and help heal it. A system of injections without needles could also slow the ageing process by using the same process to “tune” cells.

Bruce Lahn, professor of human genetics at the University of Chicago, anticipates the ability to produceunlimited supplies” of transplantable human organs without the needed a new organ, such as kidney, the surgeon would contact a commercial organ producer, give him the patient’s immuno-logical profile and would then be sent a kidney with the correct tissue type.

These organs would be entirely composed of human cells, grown by introducing them into animal hosts, and alloweing them to deveoop into and organ in place of the animal’s own. But Prof. Lahn believes that farmed brains would be “off limits”.He says: Very few people would want to have their brains replaced by someone else’s and we probably don’t want to put a human brain ing an animal body.

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