狂犬病

Carnivores Spread Distemper to Lions New research shows that dogs are no longer the primary source of a disease that has infected and killed lions in Tanzania. Canine distemper now appears to be spread mostly by other carnivores, such as hyenas, jack

发表于:2018-12-08 / 阅读(35) / 评论(0) 分类 VOA标准英语2015年(一月)

Under the influence of rabies, even docile animals often become dangerously aggressive and bite without provocation. Since the virus often concentrates in the saliva of the infected animal, a single bite can pass it on directly into the blood of the

发表于:2018-12-30 / 阅读(25) / 评论(0) 分类 国家地理2007年

By Victoria Cavaliere Washington 13 June 2007 A deadly, fast-spreading virus is affecting freshwater fish in several lakes in New York state. In the past, the fish virus had a catastrophic impact on fish populations in Europe, Japan, and the U.S. Pac

发表于:2019-01-09 / 阅读(75) / 评论(0) 分类 2007年VOA标准英语(六月)

by Jill Moss Broadcast: July 23, 2003 This is Bill White with the VOA Special English Health Report. A medical company in Australia, PanBio, has developed a new test for West Nile 1)virus. The test ex

发表于:2019-01-09 / 阅读(72) / 评论(0) 分类 VOA2003(下)-环境与健康

CANBERRA, Sept. 6 (Xinhua) -- A rare virus that can be contracted by humans has killed a large number of Victorian pigeons after being detected in the Australian state for the first time, Agriculture Department confirmed on Tuesday. According to the

发表于:2019-01-09 / 阅读(65) / 评论(0) 分类 英语新闻

Reptiles, Amphibians in US Succumbing to Deadly Ranavirus Tracking the virus A few years ago, Scott Farnsworth, a graduate student at Towson University in Maryland, was sent to a wooded park in Maryland to relocate box turtles safely away from a new

发表于:2019-01-13 / 阅读(65) / 评论(0) 分类 VOA标准英语2012年(四月)
学英语单词
accumulation layer
actual source
After-regeneration
air-usair
analysis by manner of application
anomalous wave
antidiscriminative
arraus
atomic fission
baragiola
blipster
breakdown time
brickfield
Cacongo
calotropigenin
catasta
cerium fluoride
closed vascular system
cockfield
conferree
crest amplitude
criticizin'
cubic lattice cell
de-aired concrete
DO, DID, DONE
East Bank
folk-etymologize
forward shift
functional conflict
Gosho Heinosuke
grain heat-drying
guard frame asist handle
hand hack saw blade
Heian period
Hiscock
hold something in derision
holding ring
impedance matching transformator
indirect transfer
j'aurais
Korobitsyna, Mys
land-leaper
lignosulphonate mud
linear bearing
linked list
lohocks
Magnesiocrocidolite
mangueira
masquerades
material time
no-load tap changer
non-compression-type fitting
notch up
nuclear bag fiber
ODS - operational data store
on one's chest
overstitching machine
Park Forest
peak overpressure
pfisterer
phasine
photo-electric effect
physiology of high altitude flying
pirouetted
plain coffee
plug the gap
point relaxation
primary graph
processable tea rate
protrayed
requ
Rhododendron lepidotum
screening curve
self-righteousness
Shoalwater B.
short-circuit breaking current
sorting inspection
speed of welding travel
station keeping system
stereotelemetry
sudarshan
super master group
surface reistance
surface structure analysis
sweeping generalizations
take one's death upon something
takkar
taskboard
taut strip suspended
technical centre
thermal power station
through shipment
Triad Islands
trople
two-stage filtration
unneeded
volumetric efficiency of mine air
wheel-fixed axis system
wildly ramified extension
william kidds
X-generation
Zadonsk