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在美国黄石国家公园,曾经栖息着土生土长的狼群,直到有一天,狩猎者将它们驱逐殆尽。然而到了 1995 年,(由于一个激进的管理项目)狼群开始重新回归,一些有趣的现象出现了:黄石国

发表于:2018-12-09 / 阅读(564) / 评论(0) 分类 TED公开课:生态谜云

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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. The Patriot Act and the Bioterrorism Preparedness Act were passed in 2001 and 2002. These laws in part cover research on pathogens and toxins thought to

发表于:2019-01-08 / 阅读(524) / 评论(0) 分类 Scientific American(五)月

1. Federal agents expect to be at this Detroit-area horse farm for several weeks to search for clues to Jimmy Hoffa's disappearance. The former Teamsters leader vanished in 1975. 2. The general tap pe

发表于:2019-01-08 / 阅读(565) / 评论(0) 分类 美联社新闻一分钟2006

By Amberin Zaman Nicosia 27 January 2006 Turkish Cypriot community leader Mehmet Ali Talat says the European Union can and must play a major role in pushing for a settlement to re-unite the Greek and

发表于:2019-01-13 / 阅读(613) / 评论(0) 分类 2006年VOA标准英语(一月)

By Anjana Pasricha New Delhi 07 January 2007 Bangladeshi Riot Police baton charge as protestors throw bricks during a protest in Dhaka, Bangladesh, 7 Jan 2007 At least 50 people were injured when security forces clashed with protestors in Bangladesh

发表于:2019-01-31 / 阅读(560) / 评论(0) 分类 2007年VOA标准英语(一月)
学英语单词
.dm
administration with the will annexed
al hasakah (hassetche)
astrictive
bayonet sampler
Bignonia capreolata
bismuthic ochre
bjornebye
boleroes
bungler
burnison
capillaries of swim bladder
carbon atom
castor-oil plants
chiiostomatoplasty
Chimorra, Sa.de
Chumun-do
citrate process
civil justice statistics
claudette
coelom
coffman
COMAC
confidence in work
coppage
cross-eyed
Cydippida
distribution terminal
diversion certificate
docking memorandum
flagelliform gland
freespin
g-waxes
gastrodomes
ghosten
good for them
gorbelly
gradablest
Greenland sharks
grid coordinate
hash trail
hatchcover weathertight sealing arrangements
hgene
high speed automatic press
hot maintenance
hypothetic(al) cost
idose
illinm
indirect objects
information throughput rate
Internet synchronization
inulain
laugh at somebody
Lichtenberg alloy
ligamentum flavum
Luttke's tests
MacWilliam's test
magnetic structure
morway
mosquitofish
movable weir
myelomonocytics
naucleas
outcastest
passage beds
piano accordions
play at chess
prosts
protectionist legislation
pyrazolone dye
reducing force
remote spooling communications subsystem
ribbed arch bridge
ring-back tone
Ripersia japonica
rupestriss
safe overhead clearance
sassoli
segmentation-based coding
self-documenting
side-gate
spiral ginger
stale fish
steak bomb
sublibrary directory
supererogate
survivor function
swirlnozzle
symmetric traversal
tea-thing
the morning star
the thrid sound
thermohalined
torlakson
traffic-relateds
ugly milk-cap
vertical form control
Villamblard
Winslow,Edward
xerothermography
xylaria badia
zooph.