单词：chromosomal nondisjunction
单词：chromosomal nondisjunction 相关文章
This is scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? The yeast Candida albicans ekes out a quiet living in our gut. But its a tough life. It faces acids and enzymes, and the immune system always bullies invaders.
Scientific American(五)月
This is Scientific American's 60-Second Science, I am Steve Mirsky,Got a minute? A team of Finnish and American geneticists has found that that, for some people at least, music is in their genes. In what the researchers called the first study of its
Scientific American(六)月
III. Listening In Task 1: A Friendly Stylist Stylist: Morning, sir. This chair, please. What can I do for you? Nick: A simple haircut: short on the back and sides. Stylist: Very good. I can, of course, do something fashionable for only $60. Nick: 60
新视野大学英语：视听说教程 4
Birth Defects Rise in Former Iraqi Battleground Five-year-old Lujane is one of hundreds of children in Fallujah who have been born since 2004 with severe birth defects. Her father says Lujane suffers from multiple afflictions that Iraqi doctors strug
VOA标准英语2012年(十二月)
CANBERRA, Aug. 17 (Xinhua) -- Australian scientist on Wednesday said his international research team has discovered the trick on how butterfly learn to change its wing pattern to avoid being eaten by birds. The Amazonian butterfly, Heliconius numata,
英语新闻
I want you to imagine two couples 我希望大家设想一下，两对夫妇 in the middle of 1979 在1979年的年中 on the exact same day, at the exact same moment, 在相同的一天，相同的时刻 each conceiving a baby -- okay? 每对怀上了
TED演讲教育篇