小型有孔虫, 小型有孔虫类

Smaller Fingers Mean More Sensitive Fingertips A study in the Journal of Neuroscience finds that people with smaller fingers have more sensitive fingertips, probably due to a higher concentration of touch receptors in a given area. Cynthia Graber rep

发表于:2019-01-02 / 阅读(99) / 评论(0) 分类 60秒科学

By David McAlary U.S. astronomers have made a finding they say increases the chance that distant stars may harbor planetary systems like our own. They have discovered two planets the size of Neptune e

发表于:2019-01-03 / 阅读(57) / 评论(0) 分类 VOA2004(下)--健康科技

Could Rising Temperatures Mean Smaller Mammals? Scientists say in the ancient past, higher temperatures meant smaller mammals. Theyre studying how a brief, but dramatic climate change event affected body size. Its called the Paleocene-Eocene Thermal

发表于:2019-01-14 / 阅读(45) / 评论(0) 分类 VOA标准英语2012年(二月)

By Melinda Smith Washington, D.C. 19 February 2008 Congestive heart failure is diagnosed when a weakened heart fails to pump blood adequately and fluid builds up in the lungs and elsewhere in the body. But a diagnosis of congestive heart failure doe

发表于:2019-01-31 / 阅读(27) / 评论(0) 分类 VOA常速英语2008年(二月)

Are Americans Too Big To Drive Small? Analysts say our waist size will keep us from buying small cars in big numbers Analysts say Americans' waistlines may keep us from choosing small cars. (Adam Morath, AOL Autos) Karen Steelman, a stay-at-home mom

发表于:2019-02-18 / 阅读(41) / 评论(0) 分类 阅读空间

One of the oddities of our solar system is that the Sun burns about 25 percent more brightly now than when the solar system was young. 现在太阳燃烧的旺度,要比太阳系形成之初强了大约25%,这是我们太阳系的怪事之一。

发表于:2019-02-25 / 阅读(40) / 评论(0) 分类 万物简史
学英语单词
Achnashellach
anthophilous insect
argue the point
artificial lightening
as black as a raven
assmouth
black grass
booshwa
bursal tumor
by the hands of
C-frame
c-onc
carbonizing test
cardinal numerals
Caryodaphnopsis
central treating station
chamals
commercial land use
control instrument
corrosion resisting casting
corysterium
cut frame
dam-buster
darkened glass spheres
demilune cells
dipropyl amino-benzaldehyde
direct labo(u)r hour rate
distance and speed repeater
drifting jumbo
drop-feed oiler
dubbs
electronic parts
Elswick
European skipper
expansion chuck
factors
far in frared communication
film version
fooders
four-drum boiler
fullblowns
Gabo I.
gear pair with par-allel axes
girdle bone
guiding centre of a particle
hardware tariff
hatchettind
health history
internal conductor reactance
interrecord relationship
Kraemer equation
Kurosawa, Akira
law of the negation of negation
levormeloxifene
Lignariella
long-milk
long-ways
lower eyelid
mcnelley
mesonephric tubules
Mishkinskiy Rayon
mix ... drinks
Monocyathea
music drama
nanoreactors
neuromedical science
outgrowths
over-plenty
PAHVC
parastacid
peat-brown
periodic instability,oscillatory instability
phono configurational code
preliminary debugging
Rathmullan
recoveree
resignallings
riverling
rottings
roughing up
sammons
scordatura
semi-self-propelled machine
spartinas
species packing
split ventilation
sputternik
surplus on appreciation of capital assets
tectonic association
the signs of the zodiac
thrust bridge
transcription attenuation
trichomycosis rubra
trillini
unbolted
unrighting analysis
urethratresia
Ushuaians
variety of the yellow-fleshed group
vellosimine
wilkinson power divider
zoophori