血型转换有望实现(1)
为了缓解O型血-通用血型的紧张状况，科学家们开始研究是否可以把其它的血型的血转换成为0型血http://t1.g.hjfile.cn/voasp/rm/2007/05/20070507.mp3Scientists may have found a way to reduce shortages of type O blood. Type O is the kind of blood that hospitals most often need. What the researchers are testing is an easier way to make type O blood out of other kinds of blood.There are 4 main blood types. Most people are born with one of these f…
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