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vi. 【生物学、遗传学】回复突变,复归突然变异

The World Health Organization says about 500,000 people die every year from seasonal flu. To combat that, doctors recommend getting a flu vaccine at the beginning of each flu season and researchers are now working on a universal vaccine that could pr

发表于:2018-12-16 / 阅读(434) / 评论(0) 分类 VOA标准英语2010年(十二)月

1. Rescue and relief efforts continue in Pakistan. The UN's emergency relief chief fears they are running out of time to get help to remote villages cut off by blocked roads. 2. Scores of Islamic mili

发表于:2019-01-08 / 阅读(447) / 评论(0) 分类 美联社新闻一分钟2005

By Cathryn Curtis Washington, DC 16 March 2006 watch Bird Flu Mutations report Swabing inside of mouth of bird As the threat of bird flu spreads around the world, the big question on the minds of scie

发表于:2019-01-13 / 阅读(605) / 评论(0) 分类 2006年VOA标准英语(三月)

Each year, scientists work to develop a unique influenza vaccine to protect people against the strain expected in the coming flu season. Mutations in the virus mean that last year's vaccine probably won't protect against this year's flu variety. Now,

发表于:2019-01-13 / 阅读(505) / 评论(0) 分类 VOA标准英语2010年(七)月

台湾籍旅美老师今天交给我们的句子是: When studying these fruit fly brains, scientists identified one single gene that, when mutated, rendered a female completely incapable of deciding on a mate - even when a male is trying really ha

发表于:2019-03-05 / 阅读(484) / 评论(0) 分类 留美老师带你每日说英文
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acoustic surface-wave couplers
alternate polarity
animal labor
areogrphic latitude
arma plat. (al urumah)
bacterial extract
bacteriophagia
Biscoe, Mount
bound bitumen
calculating of heat exchange
call outs
canal cover plate
car deck space
carbamylate
categorical labels
cattail family
Christling
cliff dweller
clot buster
CO Lasers
coil spring switch
crossed-field amplifier tube
d'artois
delivery failure
deuterium compound
dirt-daubers
discounted cost
display standard
distractious
dived in
driven wheel
emplastrum belladonnae
end fission chamber
entry for search
fair price shop
galactosyls
graftonite
grain harvester
grass-roots
high temperature cable
hybridizable
infinite product
international standard metric thread
intoning
ixcest
laboratory experiment
lactalbumins
laterotemporal
lehua
magic mortgage
microphyte
multilateral and bilateral programme
multiplicative axiom
multipoint channel
multiregion problem
n-vector model
neural laminae
neutron irradiated
Neuwied
northupite
noumeas
pakoras
palindrome (wilson & thomas 1944)
paper stencil printing
parting of the pass
pitieth
plumbing system
port risks
power shaft
precapillary arteriole
preclarent
prepared plant extracts
prewrite
propeller performance curve
recuperative pot furnace
retrospectical
Rhododendron radendum
screw-propelled
semifake
singular nouns
soil tiller
Solemn Mass
speedwalks
spurnest
Squirrel Cage Induction Motors
standard labour rate
star-glories
stream seepage
studlar
stupid o'clock
synthetizes
tanker casualty statistics
transactivational
two-divisions
unidiomaticity
union movement
unsolicited offers
vertical visibility
wedge-and-sleeve bolt
weigang
whal eie