马缨丹酸

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(53) / 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(61) / 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
-monam
Abgesangs
adhesive agents
Afroasiatic language
after the date of the cheque
analgene
Android watch
antiscorch
base-mode
Beemerville
Bhowa
bi-unial
blackshoe
carcinogenic virus
carry storage
clear-slow signal
colloquise
compression-side
corinas
danger index
Debye shielding effect
Demetrius I Soter
Derby red
details
dibenzodioxin
diospyros nitida merr.
disposable dinner set
economic calculation team
electropulsation
elevating mast
emmy-award
final settlement
four quarter plan
full turn
Funduus
gametophytes
gravity hammer
hump-backs
indexing type
indican(a)emia
infinite program
integrated keyboard panel
key feeder
lambert-eaton
lan-guage
Langstroth hives
leptodactylone
li-polymer system
linear diffractometer
losenge
loss leader
loss of expected energy
Lotophagi
low pressure bubble
low-loading amplifier
made himself clear
make broad her phylactery
make it a rule to do something
make readings
maneuvering
memory subsystem
miraglio
multi-element
multipurpose oscilloscope
Myrticolorin
near-field spectrometer
neneh
neutral axis (of straight beam)
new system economics
non-arbitrariness
non-revenue flight
nonzeros
ntns
OE
pale as a ghost
paper product
parasitic encrarius
Pasteur effect
phase locking circuit
piperanitrozolum
plebiscitaries
plessor
precursor chemicals
prosthodontists
reflexive preferences
SCE wire
solid-state battery
sporotheca
staccato
standard earth station
state diagram
Streptomyces Gougerotii
terminal service manage
to rear livestock in pens or sties
trol
underway replenishment force
urgonians
User Interface Markup Language
venanatin
VERITAS file system
wervel
wragland