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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(352) / 评论(0) 分类 TED公开课:生态谜云

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发表于:2018-12-11 / 阅读(262) / 评论(0) 分类 新编大学英语阅读部分

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(283) / 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(336) / 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(330) / 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(290) / 评论(0) 分类 2007年VOA标准英语(一月)
学英语单词
a few bob
amphidasys
analog signal generator
archaeopterygid
balistes vetulas
Beckeln
bellacs
blasting flyrock
bursae of great toe
C-cell
cansado
capron(e)
carries a torch for
catch sb's eye
centa
cheneries
childhood neurasthenia
circulation method
coupling coupon
Cremanthodium botryocephalum
Denham B.
dropacism
dynevor
equalizing piston valve
euhedral cryatal
fan beam
final trunk group
fire-hazard
flame tip
footpoints
glomus chorioideum
hammerswick
head-mistress
header error control (hec)
herdsboy
hydraulic dynamometer
inconclusiveness
involute rack tooth
jpy
Krivopolyan'ye
lactic (acid) anhydride
lumber core plywood
machinegunning
manganese
master curve
mechanized data processing system
meteorologic elements
Methoxsalene
miter framing
mobile IP
motorneurones
Murav'yëvka
myxoneuroma
optical-mechanical scanner
ossobuco
paramisolampidius tenghsiensis
paramountship
peed
perigee motor
photocal coincidence index
pieza
pinion bearing
platydema sakishimense
pressure pipeline
primogyn M
prolegs
pump piston collar stud
quasi-steady method
ration stamp
Risālāpur
rolled oatss
Roscoe Glacier
Schwäbisch Hall
seaside resort
sep (spent fuel pit)
shares of no par value
silicon flour
sinjun
six-guns
spare area
special wrench
station section
sterilized beaker
stoppage capacitor
stoushes
talk of the devil!
test of braking stability
tetanigeneous
throw of the pointer
Tolectin
TPed
triamcinolone aminobenzal benzamidoisobutyrate
triclinia
trihypostatic
unrestricted spermatogonial testis-type
vaginovulvar
vicoli
view direction
welfare rolls
wrong factual basis
Yandongi
zakaah