四环素偏磷酸盐,青四环素

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

发表于:2019-01-02 / 阅读(102) / 评论(0) 分类 60秒科学

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(64) / 评论(0) 分类 Scientific American(五)月

One of the world's most amazing migration is about to begin in earnest: 300 million monarch butterflies spread across North America are about to converge on small forests in the mounts of Mexico. This year, the butterflies have an unusual company as

发表于:2019-01-08 / 阅读(119) / 评论(0) 分类 2005年NPR美国国家公共电台

By Robert Berger Jerusalem 14 November 2009 An ultra-orthodox Jewish man is seen next to Intel's Jerusalem office building, 14 Nov 2009 Alleged violations of the Jewish Sabbath by a top international company prompted religious protests in Jerusalem

发表于:2019-01-14 / 阅读(63) / 评论(0) 分类 VOA标准英语2009年(十一月)

China has long depended on coal-burning power plants to fuel its explosive growth over the past three decades. As a result, air pollution has risen to alarming levels in central and eastern regions. Policymakers have been working hard to shift the co

发表于:2019-01-19 / 阅读(102) / 评论(0) 分类 2017CRI中国国际广播电台

Probiotic yoghurt drinks and supplements dont live up to their promises, according to an EU watchdog. They claim to boost your immune system and help digestion. It concluded there is no scientific proof that products such as Yakult have any health be

发表于:2019-02-04 / 阅读(36) / 评论(0) 分类 阅读空间
学英语单词
acetylcoenzyme
artificial reproduction rate
AWRS
balance state
binormal acceleration
bridecake
brier grape
cache buffer
cartilagines nasales sccessoriae
casesa
causal coding
chorionic circuIation
Cnemidocoptes
coinhabit
conservation areas
critical strike
cushion tire
cycloanemi zation
Data Set Ready
Defiltran
defoslimod
derived works
direct-access
discontinuing
distortive
dominoess
dwarf cornels
electric systole
execution request block
Fauske
flat heater
Flintbek
floriferum
form library maintenance
gingival dleeding
Glossobalanus
gygelot
hand bike
Hexadiphanefg
Hibiscus moschatus
hydroureter
independent vein
inhalation therapist
international atomic energy agency (iaea)
kamdu
killing out percentage
knock sb over
koudelka
learning potence
like whoa
macroregional
magnetic drag
manyat
Masai
mensah-bonsu
Mikwi
monosporic
Moyer's line
nati
nationwide
necrolatry
numerically controlled
olant product
pathological grading
phocenic
pineapple flower
pluridisciplinary
PTN
Put that in your pipe and smoke
pyroglucic
PZF
ramiet propulsion
recessus lateralis ventriculi quarti
regional titling
regionalise
regionalises
revolving bed
rhododendron atrovirens franch
roughed up
seamlike
self-commendation
semi-underground power house
shaking conveyor supply truck
simulation operation center
solar road
spin-free quantum chemistry
spinning disk distributor
square dome
stadium increment
sulitjelma
superfloods
supracranial
syllabuss
tandias
target center
the legend of joseph
tomosynthetic
tv-radio
variable indicant
Vieussens's annulus
welding and forming mill
written log