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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(243) / 评论(0) 分类 TED公开课:生态谜云

新编英语教程第五册unit03_2_beginning_of_the_end_for_antibiot

发表于:2018-12-11 / 阅读(143) / 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(158) / 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(224) / 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(206) / 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(157) / 评论(0) 分类 2007年VOA标准英语(一月)
学英语单词
abbreviation document
accumulative speed
acid camphor mixture
air drainge
aktashite
ami conditions
angle of flap deflection
Baetic
bags torn
baleys
benzoyleneurea
carering
ccomplete canopy
Chilperic II
coat colour
command button
continuous delta modulation
cowboy hats
cranny
crepidotus fulvotomentosus
cybersuit
cymata
cystic fibrosis transmembrane conductance regulator
deadstarted
density current
deutoplastic
devolu-tions
dim-headed
double sideband transmission
drownds
druidical
egg (coal)
electron-hole drop
ethyl benzenesulphonate
eye-beaming
fall into disfavour
fluorescent particle atmospheric tracer
fringe (interference)
get together
Godman's fascia
Grecism
guffers
hare-bell
immune defence
key sequenced file
kitplanes
liberation of gases
light generation
long-distance telegram
machine space point
make a big stink
mcbroom
motor-operated
Nepomorpha
nickeltin
night-flying
non-appealable
Oberwil
odontoloxia
Palestine Liberation Front
papillomavirus
paramnesia
periarterial pad
phosphous
plasma cell myeloma
pneumony
postovulatory
processus basalis
reciprocal polynomial
red-roofed
remagnetized
rheogeniometer
rough shanner
Serif font
sessiles
Shillingstone
single-attached connection
sleep like a log
St. Tr.
stroboglow
taxilight
testing procedures
thick-and-thin
Tokotan-gawa
tooth tip leakage flux
tpy
trichodactylids
triotus
troubly
twelfther
universal agency
vasectomies
vena comitans
vendor's shipping document
volume changes in the soils
white dipladenia
woman-worship
working capital norm
yardsman
zeug
zre alloy