施肥过量

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(201) / 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(161) / 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(148) / 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(223) / 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(183) / 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(236) / 评论(0) 分类 英语新闻
学英语单词
acoustic wave
Adhatoda ventricosa
agrometeorological station
Al Ghanam
Allium altaicum
alpha interferon
alternating-current winding
appropriated retained earningss
aquacises
Bangassi
basilique
be bound in
be separated from
blast wind
book of rites
butalbital
cannon fodders
canvas gauntlet glove
CBIR
cell recycle
changing-over
cleansing agents
closing period
conformal parameters
counter drill
crystalliferous cell
cypridopsis vidua
detail sketch
devilishnesses
division
draw opaque
drip water plate
embryonate
ensigning
exhaust loss
factor rate
gaseous detonation
gliding turn
goatsmilk
granular cell myoblastoma
in full of sight
intracavity laser
Jawi
juventino rosas
key-seating milling machine
Kubar
leaf disease
Leppe
limiting time
lule
magnetic-resonance accelerator
Maillard
marine energy resource
marmalets
Menton
model-building
money rates
mounger
nakayamas
nmeda
non-sex-associated variation
nonquarantine
overexpressed
pachytene analysis
pass sampling technique
pedestal-type squeezer
perixera illepidaria
permeable soil
photo calibration mirror
pilot signal
pneumatic chipper
positioning bolt
preterist
principal debtor
progressio
quill shaft-type clutches
rarefications
reciprocal rule
regiones calcanea
scarfe
service firm business
Shipston-on-Stour
shirt-pocket
shruggery
sivans
skorgen
slow-footedness
splenomesenteric
static absorption
takes action
temporal theory
to say the least
tracer diffusion coefficient
tvmm
two-parameter adaptive control system
untreated water
upper critical magnetic flux density
value declared
Varley's loop method
weld iron
windows innocent of glass
wulsin