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[高清字幕]Health Report - Cloning to Treat Disease Still Raises Ethical Concerns

来源:慢速英语   时间:2013-06-26 09:20:52

Health Report - Cloning to Treat Disease Still Raises Ethical Concerns

American scientists have, for the first time, taken stem cells from human embryos that are genetic copies of living people. The goal is to create better treatments for disease. But the work has raised ethical concerns about cloning, or making genetic copies, of people.

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