氮尿苷酸

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(146) / 评论(0) 分类 (科普英语)Earth and Sky

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(180) / 评论(0) 分类 知性英语

HEALTH REPORT - October 23, 2002: Folic Acid Reduces Fetal Deaths By Nancy Steinbach This is the VOA Special English Health Report. A new study in Sweden has confirmed another important health effect

发表于:2019-01-04 / 阅读(56) / 评论(0) 分类 健康与环境

Folic Acid Supplements Shown To Reduce Risk Of Autism Green, leafy vegetables, fruits and nuts naturally contain folate, a B vitamin that helps the body make healthy new cells. Most pre-natal vitamins include folic acid because it protects against de

发表于:2019-01-14 / 阅读(62) / 评论(0) 分类 VOA标准英语2013年(四月)

By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot

发表于:2019-01-16 / 阅读(110) / 评论(0) 分类 VOA常速英语2007年(十一月)

By Melinda Smith Washington, D.C. 07 June 2007 For years, doctors urged women to take folic acid if they planned to get pregnant. Then researchers discovered the nutrient helped reduce the risk of a heart attack. But now a new study shows folic acid

发表于:2019-01-16 / 阅读(101) / 评论(0) 分类 2007年VOA标准英语(六月)
学英语单词
acutifolium
apterodicera
bayish
birch oil
Bluelip
Bolea
Bom Retiro
brotus
bullinids
buphane disticha
catalogue cards
centralized processor
certificate of conformity
Cheddleton
chlorine residue
cladding-fuel interaction
cloud gamma dose
coast current velocity
cohobating
colo(u)r changing reaction
combustible primer
convex curve
creep-mouse
cross heredity
crossbar local office
damp proof course
designer apartment
die qrench
dill fruits
Diplopterygium longissimum
dowall
draw in bolt
dubuque
effluction
energy generation
eutectic powder
expansion ring seal
export suspension
fault detecting relay
flattens out
fluctuation of metal line
forisfactur
formylacetonitrile
genus colubrinas
geography of biocoenosium
guglielmo
high softening point resin
high-tension pulse
homopolymer
hydrogen-filled rectifier
indigofera cooperi craib
inella subfenestra
ISO Currency Code
keazoglyph
Kurzia
link-coupled
Lithocarpus handelianus
low-manganese steel
machine readable string
mean spherical intensity
modulation coding system
moldboard cutter
multiresolution
nonmultiplexed
nonsulfur
oil canning
order actiniarias
paradoxical flexor reflex
partners in crime
Perryopolis
positive-ion temperature
precipitate something into
proper class
Pseudamphistomum
quadrant blocks
rachimorphous
read-only procedure
recognitions
regression line for job and salaries
report group presentation
salescritters
saphenous nerve
Schultze's folds.
short-period forecast
Staffellidae
starchness
stratum internum
strike a balance
temperature telemeter
Tincalzite
track frog
trivial proximity
tutufa rubeta
twin-inlet
Two Harbors
two shields ball bearing
uncongeal
unhittable
unsocialized
versions
Wauwatosa
wolfishly