双重受精

VOA慢速英语2011--Ernest Hemingway, 1899-1961: One of the

People in America - Ernest Hemingway, 1899-1961: One of the Most Famous Writers of the 20th Century 美国名人 - 海明威二十世纪最著名的作家之一 SHIRLEY GRIFFITH: I'm Shirley Griffith. DOUG JOHNSON: And I'm Doug Johnson with People in

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2011年VOA慢速英语(六)月

SSS 2008-04-14

This is Scientific Americans 60-Second Science, I'm Cynthia Graber. This will just take a minute. In vitro fertilization(试管受精) efforts can be helped by oddly enough oral contraceptives .That's the finding from Tel Aviv University, site of the

发表于:2019-01-08 / 阅读(71) / 评论(0)

Scientific American(四)月

SSS 2010-10-04

This is Scientific Americans 60-Second Science, Im Steve Mirsky.Got a minute? The 2010 Nobel Prize in Physiology or Medicine goes to 85-year-old Robert Edwards of England, for the development of in vitro fertilization. The Karolinska Institutes Chris

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Scientific American(十)月

VOA慢速英语2011--Ernest Hemingway, 1899-1961: He Was Able

People in America - Ernest Hemingway, 1899-1961: He Was Able to Paint in Words What He Saw and Felt SHIRLEY GRIFFITH: I'm Shirley Griffith. FRANK OLIVER: And I'm Frank Oliver with People in America, a Special English program about people who were imp

发表于:2019-01-12 / 阅读(56) / 评论(0)

2011年VOA慢速英语(六)月

Human fertilization process discovered

BEIJING, Aug. 22 (Xinhuanet) -- Researchers have discovered how a human egg captures an incoming sperm for fertilization, paving the way to help couples suffering from infertility, according to media reports on Monday. An international team of resear

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英语新闻

VOA慢速英语2012 PEOPLE IN AMERICA - Fred Astaire, 1899-1987: His acting, singing and dancing changed the American motion picture musical

PEOPLE IN AMERICA - Fred Astaire, 1899-1987: His acting, singing and dancing changed the American motion picture musical SHIRLEY GRIFFITH: PEOPLE IN AMERICA -- a VOA Special English program about famous Americans of the past. Today, Harry Monroe and

发表于:2019-02-18 / 阅读(63) / 评论(0)

2012年VOA慢速英语(七)月

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