标签：embryo 相关文章
世界首批试管狗宝宝成功诞生 Scientists at Cornell University have proudly presented the first litter of dogs successfully born through in vitro fertilization, or IVF. The breakthrough may help in combating inherited diseases that affect c
VOA双语新闻 2015年12月
Unit 10 Text A Listening First Listening Before listening to the tape, have a quick look at the following words and phrases. overseas 向海外 fantasy 幻想 cell 细胞 gene 基因 identical twins 同
21世纪大学英语读写教程
Since the 1980s, millions of American women have used fertility treatments, including the implantation of embryos, to become pregnant. But the process is expensive, averaging $12,000. Earlier this month, Reveal, part of the Center for Investigative R
PBS访谈健康系列
I can see the muscles that make up my face, my skull, and my own brain. So, now I can take you on that journey into my ear in a way that’s never been possible before. This time we can fly straight t
生命物语
1918 Flu's Genetic Code May Help Fight Bird Flu 1918年的流感病毒基因源代码可能帮助人类抗击禽流感 It was the 20th century's greatest plague . Estimates of the 1918-1919 flu death
VOA2005（下）--环境科学探索
'Three-Person Babies' Debate Goes Beyond Science and Religion 三人创造的人类胚胎辩论超越科学和宗教 Britain has become the first country to permit doctors to use genetic material from three people to create human embryos. The process
2015年VOA慢速英语(三)月
Making Stem Cells From Ordinary Adult Cells Most cells in our bodies are unipotent, that is they stay the same throughout their lives. For example, once a skin cell, always a skin cellthey never start turning into brain cells. The exception is stem c
英语时差8，16
Section (C) Twins Six Years Apart Scientists in Scotland recently announced that, for the first time, they have cloned an exact copy ofan adult mammal. The cloned lamb, named Dolly, has the exact same genes as the adult sheep fromwhich she was cloned
新视野大学英语读写教程(3)
Can Babies Be Designed? We hear a lot nowadays about designer babies. The idea that parents can choose the genes of their children sounds frightening. The question we have to answer is: how much can w
英语沙龙2004全年合辑上
He became rather technical; spoke of the abnormal endocrine co-ordination which made men grow so slowly; postulated a germinal mutation to account for it. 他相当专门化地谈起了使人生长迟缓的内分泌失调问题，并提出萌芽期突变
美丽新世界
Millions of years ago, the embryo of a distant ancestor of ours would have shared with us many of these features. As well as giving rise to us, it gave rise to all sorts of other creatures. And in tho
生命物语
Scientists in Oregon successfully fixed a disease-carrying gene in human embryos. It was the first time this has been done. This small effort could be a big step in preventing inherited, or gene-related diseases. A research team at Oregon Health Scie
2017年VOA慢速英语(八)月
1. South Carolina Coroner's Office says a combination of smoke inhalation and burns killed the nine firefighters inside a burning furniture store in Charleston. They died after the roof collapsed on top of them. Investigators say arson is not suspec
美联社新闻一分钟2007
QUADRUPLET girls who made medical history when they were born from the same embryo are celebrating another milestone in their lives as they start nursery. 世界首例同卵四胞胎女婴创造了医学史上的记录，现在她们正在迎接人生中
英语新闻
AS IT IS 2014-10-13 Thailand Seeks to Ban Commercial Surrogacy 泰国试图禁止商业代孕 Thailand is campaigning against commercial surrogacy, one of the worlds most unregulated industries. In this industry, infertile foreign couples pay Thai wo
2014年VOA慢速英语(十)月
As of the end of 2014, the number of people over 60 years old in China had reached 212 million, accounting for 15.5 percent of the total population. Of the 212 million, around one-in-five were considered either disabled or partially-disabled. Relaxat
2015CRI中国国际广播电台
Reporter: A universal two-child policy is expected to be passed by the top legislature by the end of the week as it concludes its latest bimonthly session on Sunday. The new rules would come into effect on January 1. Zhai Zhenwu, Head of the China Po
2015CRI中国国际广播电台
He had often seen it before. When you're bigger, she had said, you can read it. Well, now he was big enough. 那书他以前常看见。你长大以后，她说，就可以读了。好了，现在他长大了。 He was proud. I'm afraid you won't fin
美丽新世界
26 茎细胞对于疾病治疗的神奇功效 DATE=5-24-01 TITLE=SCIENCE REPORT - Progress in Stem Cell Research BYLINE=Caty Weaver （Start at 59
自然探索
Public opinion polls suggest most Americans favor full body scanners as a way to protect against terror attacks on commercial airliners. The benefits of scanners are being debated in a number of countries. Some groups have raised privacy issues. But
VOA标准英语2010年(一月)