单词:y-chromosome(wilson 1909)
单词:y-chromosome(wilson 1909) 相关文章
A Century of Memories (1900-1909) On the eve of the new century, the sense of 1) boundless possibilities also 2) ignited an explosion of technological 3) innovations that would have 4) profound impact
PEOPLE IN AMERICA - Burl Ives, 1909-1995; The Famous American Actor and Singer Recorded Hundreds of Songs STEVE EMBER: Im Steve Ember. SHIRLEY GRIFFITH: And Im Shirley Griffith with the VOA Special English Program, PEOPLE IN AMERICA. Today we tell ab
ECONOMICS REPORT - Peter Drucker, 1909-2005: A Thinker for Business Leaders By Mario Ritter Broadcast: Friday, November 25, 2005 I'm Steve Ember with the VOA Special English Economics Report. Peter Dr
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
VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm Rich Kleinfeldt with the Special English program, People in America. Today, we tell the story of Jessica Tandy who died in nineteen ninety-four. She won many awards for her acting during the almost
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