[天] 行星胎

RACHEL MARTIN, HOST: Scientists doing embryo research are facing some sensitive questions over a new generation of scientific experiments, questions like how long should scientists be allowed to keep human embryos alive in their labs to study them? A

发表于:2019-01-16 / 阅读(54) / 评论(0) 分类 2017年NPR美国国家公共电台3月

ARI SHAPIRO, HOST: For the first time, scientists have altered the DNA in human embryos to make a fundamental discovery about early human development. Scientists say this proves that modifying genes and human embryos can reveal powerful insights into

发表于:2019-01-16 / 阅读(42) / 评论(0) 分类 2017年NPR美国国家公共电台9月

By Deborah Tate Washington 17 July 2006 The U.S. Senate Tuesday is expected to approve federal funding for expanded embryonic stem cell research, despite a veto threat from President Bush who opposes the idea on moral grounds. -------- On the eve of

发表于:2019-01-31 / 阅读(94) / 评论(0) 分类 2006年VOA标准英语(七月)

The U.S. space probe MESSENGER is poised to enter orbit around Mercury(水银) early Friday, Universal time, capping a nearly seven-year journey to the solar systems innermost planet. Scientists with the U.S. space agency, NASA, hope the orbiting

发表于:2019-02-05 / 阅读(40) / 评论(0) 分类 英语新闻

20 top predictions for life 100 years from now Last week we asked readers for their predictions of life in 100 years time. Inspired by ten 100-year predictions made by American civil engineer John Elfreth Watkins in 1900, many of you wrote in with yo

发表于:2019-02-05 / 阅读(144) / 评论(0) 分类 阅读空间

During the weekend, 2 couples and their families invited the media newspapers, TV and radio to interview them about embryo donation. The first couple had two teenage boys and the second couple had a 3-month old baby girl. Couple 1s 16 year old son wa

发表于:2019-02-06 / 阅读(41) / 评论(0) 分类 新西兰英语
学英语单词
acanthonerva formosana
ankle-chain
arenaviridaes
Aster acuminatus
autofail
be in a state
be on the roop
becueing
Borrelia hermsii
boundary collocation method
ceratozamias
charged current
Christiania Is.
Chuchelna
Claus sulfur recovery
clearinghouses
collophane
constrictor vestibuli muscle
correction chamber
cracking hydro
cut velvet
cutting system
decomplement
electro-clock
electrooptic q-switch
empanelled
eskandar
excision of cerebroma
F-box
feawd
febris
fissiped mammals
gaseous flotation
go go
hydrangea umbellata rehd.
ice condenser reactor containment
ifsccs
integrated access device
international interest payment
Japanese restaurant syndrome
korgen
lap-straked
legal systems
lindeman's ratio
loaded applicator impedance
mammary region
MCY
microlux
Mogapinyana
mucophilosis
nematic structure
neurothekeoma
Ngaio Marsh
nose-fly
nutritional survey
odelet
orthezia yashushii
patterned grain
Pentire
political machines
polytrimethylene oxide
postmodern campaign
progressive learning model
Protocalliphora
pto-driven tipping device
quality test
radfem
random digits
RBVO
re-photographed
receiver and manager
recycling trays
reel foot
replacement of goods
rosary shells
rostral
sickliness
skin electric resistance
Skopia
sober companion
sonic altimeter
spaz around
spermatosome
spiny goby
spring-bender
stage amplifier
subthermal energy
super-charging device
tank car freight
tearfuls
terminal hydrophyllic group
test under mask
trad jazz
transfer circulation
trembling bell
turbine bucket vibration
turn-key
Wakerley
watch-chains
winged horse pegaus
wire-haired
write clearly