集中施肥

60秒科学:爱德华兹获诺贝尔医学或生理学奖

10月4日，在瑞典首都斯德哥尔摩的卡罗林斯卡医学院，诺贝尔奖评审委员会宣布，英国生理学家罗伯特爱德华兹获得2010年诺贝尔生理学或医学奖。 85-year-old Englishman Robert Edwards wins the Nobel Pri

发表于:2018-12-07 / 阅读(94) / 评论(0)

60秒科学

万花筒 2009-02-17&02-18 八胞胎母亲收到死亡威胁

They are only a few weeks old, but these octuplets are already the center of public outrage. Los Angeles police say they plan to investigate death threats against their mom, Nadya Suleman. The 33-year-old single, unemployed mother has been getting hu

发表于:2018-12-11 / 阅读(37) / 评论(0)

万花筒2009年

VOA慢速英语--First Human Embryo Gene-Fix Could Help Stop Disease

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

发表于:2019-01-02 / 阅读(50) / 评论(0)

2017年VOA慢速英语(八)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(72) / 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

发表于:2019-01-08 / 阅读(49) / 评论(0)

Scientific American(十)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

发表于:2019-02-08 / 阅读(57) / 评论(0)

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Achras

acoustic effects generator

after rake

ale post

and that

angular leaf spot of cotton

antiweapon

applied science

as green as grass

asterionella japonica

azotaemia