[ti:UNIT 2 DNA Lesson 13 Clones Are the Same] [0:00.788]UNIT 2 第二单元 [0:02.442]DNA [0:05.530]Lesson 13: 第13课: [0:07.106]Clones Are the Same 克隆人是一样的 [0:09.703]THINK ABOUT IT! 想一想! [0:11.155] You have a pet that you l...
[ti:UNIT 2 DNA Lesson 11 Cloning People?] [0:01.064]UNIT 2 第二单元 [0:02.741]DNA [0:05.221]Lesson 11: 第11课: [0:06.710]Cloning People? 克隆人? [0:09.887]What if scientists could make clones of human beings? 如果科学家能够克隆人...
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Is Cloning the Future? Saving lives has always been an important mission of science. Now science, and indeed all society, is facing a new dilemma:whether or not to try and save more lives through huma...
Cloning 1 Creates Human Embryos Scientists in South Korea and America report that they have created human embryos through cloning and extracted embryonic 2 stem cells 3 , the universal cells that hold...
UN Approves Non-Binding Resolution on Cloning 联合国通过了禁止克隆的一项非强制性决议 A deeply divided U.N. General Assembly has approved a U.S.-backed declaration urging governments...