保护色

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Some people are worried that the more we learn about genetics, the closer well get to a day when we can choose all sorts of characteristics for our bab

发表于:2018-12-24 / 阅读(143) / 评论(0) 分类 Scientific American(三)月

But I want to jump up to shallow water now and look at some creatures that are positively amazing. 不过我现在还是想说说浅水里的世界,来看看那些神奇的生物。 Cephalopods -- head-foots. As a kid I knew them as calamari, mostl

发表于:2019-01-18 / 阅读(123) / 评论(0) 分类 TED演讲教育篇
学英语单词
acropora clathrata
all of a much
andre malrauxes
antibiotic-assoeiated(pseudomembranous)colitis
automatic inboard venting (aiv) tank
best invariant decision rule
bipedalities
bokmakierie
bollers
buck and wing
cable plow unit
cheilotrichia (empeda) angustistigma
Chinchang, Bukit
circumvoisin
clovis cultures
complicated reaction
consumption diseconomics
contact-making voltmeter
convex fillet welding
corrugated hose
decarburized layer
demonologic
density-speed relationship
dying breath
echinoderm
enkaids
essential features
exhausting the air in brake cylinders
feathering strip
gainstrove
get in the way
glose-worm
goal displacement
godwin i.
health and sanitation
hirondelles
homogamous flower
host text
Ibeas de Juarros
ice breccia
immumofluorescence method
incising
indirect trade
individual adjustment
infectious encephalitis of foxes
interactive data base management system
interrupted splint
jugary
lack of solder
Ladywood
landing ship areas
lay a patch
leasing assets
legal custody
lever action
LOGIN directory
Macrozamia communis
McRae
meat cooling plant
mensur
nanodiagnostics
naval petroleum reserves
nervus plantaris medialis
neurochemical
nightliest
non-interest bearing securities
Nugush
observational site selection
oxymonoazo dye
passiflora passion flower
pledge assets
plummiest
plurality of control
professional players
pseudoganglia
radial convergence shift
rechargeable sealed lead-acid battery
renger
report back
rod array
SAPR
schwantesii
scraperboard
second generation system
shaft lice
shielded-conductor cable
Ships Agency
shockee
shrend
simplified thread symbol
skirted
subsonic sweep
superplasticiser
tape-to-card conversion
Tofutti
tubular staging
unholy
urethral orifice internal
Viakhtu
VisitScotland
vivisectionists
wahab