施肥制度

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(226) / 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(184) / 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(179) / 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(260) / 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(201) / 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(270) / 评论(0) 分类 英语新闻
学英语单词
aeronaviator
aggressive growth
ancepsenolide
apical rosette
banjo barometer
bexleyheath
blaze up
bolingbrook
bottom plunger
brandlins
Bu Craa, Uad
cabeza la vaca
cadminate
Centuri
chapinha
cherry plum
circumferential rib
colver
composition sequence
conocephalus gigantius
contracting party
de-miners
decessit sine prole mascula
decoiling
deterministic top-down grammar
diarsenic tetramethyl
disengagement lever
distopulabial
doublemotor and alternator
economic vaibility
encephalophones
ex-servicemen
falling water
fast curing rubber
free auxin
fuel processing technology
gas-discharge relay
gives up on
Guerrero, R.
hair stream (or hair current)
heavy cargo carrier
heterodermia comosa
hours of watch
kerr rotation
kick up a breeze
kolo (yugoslavia)
krampitz
laughs off
law of constancy of interfacial angle
law of corresponding states
Librids
lime silieate glass
maculele
market dynamics
material means of warfare
mechanosensing
methenamine-silver
muscidifurax
nobbing
o-clock
Old Kingdom
opensides
order foraminiferas
p-fad
permanent layer transect
piezoelectic material
pkwy.
portable crushing plant
pressure grease
pxg
recrimped
Rhennouch
rmb exchange rate
Royle
scab of cucumber
scrubfowls
sensitive nylon
seven-year Exchange Fund note
sinistral imbrication
software standards and procedures
solar energy stove
spectral sensitive pyrometer
stock market computer answering network
Sulpiridum
system console
taurasi
thread-cutting oil
toffee apples
transmission level diagram
triad gangs
underworkman
variable-voltage welding machine
viewpoint
Welch's alloy
wheatstarch
wing clearance angle
with the advance of
WL (working level)
wraps it up
yellow-cards
z axis