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This is scientific American's 60 seconds science. I'm Sophie Bushwick, got a minute. Tens of millions of years ago, cephalopods were hiding from enemies in clouds of ink. And it turns out thatcuttlefish today producing ink that's almost identical. Re

发表于:2018-12-24 / 阅读(114) / 评论(0) 分类 Scientific American(五)月

This is scientific Americans 60 second science, I am Sophie Bushwick. got a minute. Tens of millions of years ago, cephalopods were hiding from their enemies in clouds of ink. And it turns out that cuttlefish today produce ink thats almost identical.

发表于:2018-12-24 / 阅读(124) / 评论(0) 分类 Scientific American(五)月

(WA) Human populations near the equator have evolved dark skin over many generations because of exposure to the fierce rays of the Sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good ex

发表于:2018-12-30 / 阅读(126) / 评论(0) 分类 托福听力短文

Hi, its Kasey-Dee Gardner for Why? Tell Me Why? This week we received a question about baby eye color. The question was why are most babies born with blue eyes?. And I wasnt sure that was a true statement, but it is in fact a true statement. Actually

发表于:2019-01-09 / 阅读(128) / 评论(0) 分类 自然百科2009年

This all black feathered king penguin could be one in a zillion. The video was recorded on a sub-Antarctic island of South Georgia by National Geographic Traveler magazine contributing editor Andrew Evans on his bus to Antarctic expedition. While man

发表于:2019-01-22 / 阅读(131) / 评论(0) 分类 自然百科2010年

Your teenage son wrecks the car. Your daughter shows up with her recently paroled boyfriend. These are the sorts of things that can make your hair turn gray overnight. Actually, it's impossible for hair to completely change color overnight. Hair colo

发表于:2019-02-16 / 阅读(139) / 评论(0) 分类 英语听力文摘 English Digest

Many women around the world use skin-lightening beauty products in an effort to improve their looks. The World Health Organization, or WHO, reports that the country with the highest percentage of women using such products is Nigeria. In its 2011 repo

发表于:2019-02-25 / 阅读(147) / 评论(0) 分类 2019年VOA慢速英语(二)月
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action for damages
ailanthus vilmoriniana dode
air-standard diesel cycle
Andersen
aptenodytes patagonicus
artificial propagation coefficient
as brisk as a bee
asymptotic cone of acceptance
at a high rate of speed
band 9
bevellings
boiler shell
callorhinus ursinuss
cartndge storage
catacrotic pulse
comptrollers general
corner method
county rate
crame
DDCE
deck equipment and fittings
drosell
druids
electron television
Equus caballus
Esgic
ethnically-baseds
explosion-proof wall
ey
fuel tank cap
full-lift safety valve
fussings
Gazli
gryded
H-number
Halerpestes lancifolia
hardware profile
haystack boiler
hobeler
Holy League
ill-kempt
index of absolute refraction
inwalled
kalifates
lime bin
list variable
low self - esteem
mala maxillae
Mephacyclin
mezzabarba
mgt.
Mockfjärd
moirette
nature-goddess
northwesterners
of servo-motor
Oil-staining
onion foot
operate voltage
ovarian calculus
pager
pain in the neck
Parantheropus
photovoltaic infrared detector
Pikmiktalik R.
pointed condyloma
polymer homologous range
pompano
post-coach
pounds per square inch standard
preversion
priacanthus boops
rain-gage shield
rhizophydium pollinis-pini
rishitin
Roman fever
roundstone conglomerate
second acceleration
see eye to eye with
semitere
shipbuilder's computing center
slinkys
subscriber's drop line
sugarfoot
Technician Education Council
telescopiform
tessitura
Tetragoga nagaensis
the bench and bar
thioamides
thrips orientalis
towing bollards
track bed
trans-peritoneal migration
tropical loadline (t)
unit profit
unprecludible
vertebrarium
VSWR indicator
weathergirl
yoking
Zenker's fluid