随发性病源

Human Waste Killing Caribbean Coral In the first documented case of a human pathogen infecting a marine species, U.S. scientists say a bacterium in untreated human sewage is killing coral along the Florida coast and in the Caribbean Sea. The finding

发表于:2019-01-11 / 阅读(276) / 评论(0) 分类 VOA标准英语2011年(八月)

An international team of researchers looking for the cause of severe bacterial epidemics has deciphered the genome of group A streptococcus, a normally harmless sore throat pathogen that occasionally turns deadly. Experts say the breakthrough could s

发表于:2019-01-13 / 阅读(327) / 评论(0) 分类 VOA标准英语2010年(一月)

本期内容: American scientists announced that they had cloned the Zika virus. This is an important stage in producing a safe version of the pathogen to be used in a vaccine against the mosquito-borne illness, which has been linked to brain defor

发表于:2019-03-02 / 阅读(269) / 评论(0) 分类 夏说英语新闻晨读
学英语单词
acquired immunological tolerance
alkyl sulfhydrate
all-risks policy
alumina-rich brick
american society for information science (asis)
ammirati
area research
Arizona
artificial fibre
asplenium tripteropus
backup mode
bore reflector
bridge hydraulics
British Longhairs
Bromus variegatus
Buba, Reg.
calyptothecium compressum
caperers
capillary curve
ccordinately linked
coded video bitstream
conduitlike
construction and maintenance
cozes
dehydration catalyst
double frequency table
dreidel
drum-type shears
dwellest
eccentric rotor
edited macro
English-Gothic
excess present value
exposometer
face painter
fall cover
fixed stress
Forester, C(ecil) S(cott)
geostrophic normal mode
gospel hymn
guttered out
hadary
higher derivative
historical analogy method
hollow steel roller
honours student
horizontal positions
imitation linen finishing
inflationary mechanism
inner address
least-squares straight-line fit
Leblanc system
local government inspection
lorestan
main steam stop valve leakage test
manganese copper nickel
mega-amps
melt fluidity
Meteorological Service of Canada
Michishita
misguidednesses
Mutual association
my poor self
Nassau Airport
novel method
offcamera
one-nation conservatism
orthoceratite
Papin's digester
patellar bursa
periesophageal
permanent structure
photo-reconnaissances
physical child first pointer
podophyll
potary
praetorian
pre-exposure prophylaxis
propylene glycol mannurate sulfate( pgms )
quarry rock
quasi-static unbalance
reductive ammonolysis
repare
sculpsits
shunt-wound
silver bearing copper
singeing frame
Sohna
sottise
state observer
straight side transfer press
suburban-types
sudrophone
Sunday supplement
talat
territory lighting
tirednesses
ulnar reflex
ultraviolet light vacuum gauge
waast
work-permit