单词：chromosome puffs
单词：chromosome puffs 相关文章
Now, the VOA Learning English program Words and Their Stories. On this show, we explore language. Where do expressions come from? And how do we use them? Today we go down on the farm the dairy farm, to be exact. Many female animals, such as cows and
2018年VOA慢速英语(十一)月
Man and wife,they say,there open the very bottom of their souls to each other;and some old couples often lie and chat over old times till nearly morning. Thus,then,in our hearts ' honeymoon,lay I and Queequeg a cosy,loving pair. CHAPTER 11.Nightgown.
白鲸记
Scientists at the Whitehead Institute in Cambridge, Massachusetts say it's fortunate for humans that the Y chromosome is not on the verge of extinction. That's because the Y is the chromosome that makes males males. The outlook is less favorable for
2005年NPR美国国家公共电台
This is the VOA Special English Health Report. A miscarriage is the natural loss of a pregnancy before the twentieth week. This happens to as many as twenty percent of known pregnancies. Experts say many pregnancies end before a woman even knows she
2010年VOA慢速英语(八)月
New Study Could Change Treatment for Asthma Global treatment guidelines for asthma could change as a result of a study led by a researcher at the University of Texas Medical Branch. Most adults who have mild or moderate asthma are told to use their i
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