染色体缺失

This is scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? The yeast Candida albicans ekes out a quiet living in our gut. But its a tough life. It faces acids and enzymes, and the immune system always bullies invaders.

发表于:2018-12-24 / 阅读(68) / 评论(0) 分类 Scientific American(五)月

This is Scientific American's 60-Second Science, I am Steve Mirsky,Got a minute? A team of Finnish and American geneticists has found that that, for some people at least, music is in their genes. In what the researchers called the first study of its

发表于:2018-12-24 / 阅读(33) / 评论(0) 分类 Scientific American(六)月

By Kari Barber Dakar 06 July 2007 After years of turmoil and economic hardship, the small West African nation of Guinea Bissau is facing a health challenge caused by the absence of iodine in the nation's diet. In countries where iodine is not already

发表于:2019-01-16 / 阅读(92) / 评论(0) 分类 2007年VOA标准英语(七月)

LOS ANGELES, March 3 (Xinhua) -- More and more American adults are suffering from a decline in overall sleep duration(持续时间), the U.S. Centers for Disease Control and Prevention (CDC) (疾病防治中心) said on Thursday. It's recommended tha

发表于:2019-02-01 / 阅读(56) / 评论(0) 分类 英语新闻

CANBERRA, Aug. 17 (Xinhua) -- Australian scientist on Wednesday said his international research team has discovered the trick on how butterfly learn to change its wing pattern to avoid being eaten by birds. The Amazonian butterfly, Heliconius numata,

发表于:2019-02-06 / 阅读(35) / 评论(0) 分类 英语新闻

[00:13.73]Mental deficiency [00:16.10]智力缺陷 [00:19.02]Would you mind telling me, Doctor, [00:22.09]Bob asked... [00:23.67]how you detect a mental deficiency in somebody [00:28.05]who appears completely normal? [00:31.34]Nothing is easier, he r

发表于:2019-02-22 / 阅读(51) / 评论(0) 分类 英语笑话(MP3+文本)
学英语单词
a smart guy
Abyssinian Church
adjustable inductor
adminstrators
anomalous glands
apparent place
ascochyta sojaecola abramoff
ashlike
aut-
automatic electrode assembly
barrate
be in the dock
Bowers Canyon
C-mount
class periods
Connarus
continuous driving test
counter-current cooling tower
customer-centric
cut it out
dami
danxia landform
Deloitte and Touche
desert creep
deviation from isochronism
dividing point
division store
dran
earthing wire
elanet
elemental lipid
English-speaking
external alternator regulator
feel like death warmed up
fique
fuel cooled oil cooler
gather
guarantees of official sterling balance
Haas effect
have a drop too much (of)
historical role
hours of combustion
indeterminate term liability
informal networks
interfering input
invoice tare
Kelantan, State of
legal position
lifeboy
lightwave transmission
linen damask
Littlemill
Lolium rigidum
lost upon
Mahatma Gandhi
methylene blues
micellar (solubilization) spectrophotometry
miseure
n.m.t.
non-treatments
nondedicated
notice of advice
nystagmography
opto-coupler
organoaluminium
orthogonal anisotropy
pantograph operating valve
parallel generator
Platieodigenin
poke one's nose in
port landing light
program supporting service
proposedly
propulsive
put oneself in someone else's position
quality tester
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ragus
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region consolidation
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storeless
storethrough
terminating ornament
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transient recovery time
us -goer
utd.
vascular cell
voltage-operated device
welt groove
Zonotrichia
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zulmia