受精选择性

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(231) / 评论(0) 分类 60秒科学

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(187) / 评论(0) 分类 万花筒2009年

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(188) / 评论(0) 分类 2017年VOA慢速英语(八)月

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(267) / 评论(0) 分类 Scientific American(四)月

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(202) / 评论(0) 分类 Scientific American(十)月

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(278) / 评论(0) 分类 英语新闻
学英语单词
Assad, Hafiz al-
average milking rate
babylonias
barcroft
bondehede
Bostonivy
brake with two leading shoes
brickhil
cabinet secretariat
cheilanthes krameri
clipless
clopirac
conventional programming
conversion quantum efficiency
Crocker, Banjaran
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dusewind
electronic resolver
electrovolumetric analysis
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etherisation
F(ab')2fragment
fastnesses
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fixed saving deposit
fubsily
Galianes
go over with a fine-toothed comb
gome-si
Goudoura, Akra
H-rate
hard-rock boring
Harwood Water
I.H.S.
in common parlance
inishmaan
intra-clutter visibility
iodotyrosine dehalogenase
IP Voice
jet geometry
journal box guide
left-hand lay
linguaphone
Martin Hill
morphoplasms
mouse adenovirus
multiple data call
multiple-target system
multitask group
negative goodwill
nightwatch
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nostrilfuls
not know the half of it
Oreocharis delavayi
organic-bearing
padding with zero
Pamparato
PCGIAP
persuasible
piston rod swab
Porto Artur
possible maximum loss
potato crusher
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pump suction pipe
razzmatazzes
reattaching
rebubble
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repair of deformed surface of turbine cylinder flange
roto-louvre dryer
Santa Barbara
sea bottoms
section-line
selective preference
sextupole
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skeletomusculature
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spatial economic adjustment
spirachetemia
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tap bar
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tightly
top face
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toxomycin
training oneself
tube-plate
two polar
underoil
urban ecoeconomics