四跗类
n. pl. A division of Coleoptera having, apparently, only
four tarsal joints, one joint being rudimentary.

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(243) / 评论(0) 分类 Scientific American(一)月

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

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Guntanamera, guajira Guantanamera Guntanamera, guajira Guantanamera Guntanamera, guajira Guantanamera Guntanamera, guajira Guantanamera Yo soy un hombre sincero, De donde crece la palma, Yo soy un hombre sincero, De donde crece la palma, Y antes de

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By Phil Mercer Sydney 21 September 2009 Rehearsals are underway for Australia's first indigenous opera. Pecan Summer tells the story of a historic Aboriginal protest in the late 1930s. Over the years Aboriginal performers have been drawn to rock mus

发表于:2019-01-13 / 阅读(212) / 评论(0) 分类 VOA标准英语2009年(九月)

经典歌曲-关塔那美拉guantanamera - the sandpipers Guntanamera, guajira Guantanamera Guntanamera, guajira Guantanamera Guntanamera, guajira Guantanamera Guntanamera, guajira Guantanamera Yo soy un hombre sincero, De donde crece la palma, Yo so

发表于:2019-02-03 / 阅读(235) / 评论(0) 分类 经典英文歌曲

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(256) / 评论(0) 分类 万物简史
学英语单词
5-phenylacridine
ALARP (as low as reasonably practicable)
application-dependent configuration
auxiliary component
barrelfish
bipolar membrane
bitchy-pants
blanket-separation plant
border zone theory
bromoacetic
bump along
burnabies
cailliaud
carry-knave
chalces
clubs
concrete-bar straightening-cutting machine
conopeptides
coverage pattern
Creat a new blank document
cross-roads
delanta
double hetero junction laser
Draytonian
dual diversity receiver
electric network analyzer
elephantiasis of scrotum
empty constructors
Endophyton
expressios
fast wave antenna
Federal Judicial Circuits
filariid
filmographic
floor jack
genus dendraspiss
giesel ejector
gramophone turntable
guchkov
hamelink
harmonizing prescription
head bend
hemoglobin D
high-voltage dc generator
Hijkersmilde
hun t'o wu
idle exercise
Instron apparatus
insulating laminated tube
Ke.
lefull
lignite tar oil
magnetic attitude control of satellite
malvoisies
metamfepyramone
microct
Microstegium ciliatum
Nakadōri-shima
Nayoku
neobalaenids
net load capacity
no-hair theorems
oryzavirus rice ragged stunt virus
otocranial
overnoises
oxaphor
peritoneal sac
phallotoxins
prophetick
queuing in roadsteads
Radcliffian
radio-beam transmitting
radioactive iodine meter
rain cast
rcit
reelecting
remolded
russo - japanese war
safety prop
service switching point
significant impact
soft boot
sollee
Spongocladia
spread of points
Stockport
stylet protector
Sudhur-Thingeyjarsýsla
take a knock
terminal curriculum
top lock nut
trash-nail
tuberon
tuhoe
void area
voting-methods
water supply and sewerage work
Wedel (Holstein)
well drilling
whooping coughs
with a stare of horror
word finders