新GRE阅读能力提升素材分享贴十四

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这里是由KnightBM给您能带来的精选新GRE阅读能力提升素材分享贴十四----From Scientific 2009.2：楼主动了个手术，推迟了2天，抱歉抱歉The term “nanomedicine” still conjuresup images of teams of microscopic robots performing lifesaving surgery inside our tissues, like the miniaturized submarine crew in the 1966 movie Fantastic Voyage. Given the state of the relevant technologies, any such possibility seems at least decades away. (Personally, I will have more confidence in nanobot surgical teams sometime well after engineers can build, say, crews of autonomous dog-size robots that can keep bridges and tunnels in good repair.) But this does not mean nanomedicine is as vaporous. Rather, in the same way that nanotechnology is better understood as the application of quantum mechanics to engineering, not the use of atoms as building blocks, nanomedicine might best be viewed as a systemic approach to understanding and maintaining health at the molecular level. As Heath, Davis and Hood explain, the accelerating advance of genomic science makes it easier to identify the hallmarks of illnesses even when no symptoms may be apparent to the patient or clinician. Not only could new blood tests diagnose a nascent liver tumor, for example, but they could also determine to which subcategory of brain tumor it belonged and suggest which gene-focused treatments might be most effective. Such measures could not always guarantee a cure, but they might someday be able to make often fatal diseases such as cancer and AIDS manageable, much as diabetes is now. The brilliant paradox of nanomedicine is that by focusing on what is extremely small, it can provide a better way to treat a whole person.