六氯铂酸

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(182) / 评论(0) 分类 知性英语

By Melinda Smith Washington, D.C. 02 January 2007 watch Proton Pump report A basic tenet often associated with the practice of medicine is that physicians do no harm.' But even with the best intentions, sometimes a drug prescribed for one ailment ca

发表于:2019-01-04 / 阅读(87) / 评论(0) 分类 2007年VOA标准英语(一月)

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(57) / 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 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
abcss
abrasives
accuracy index
acetyleupachlorin
acrochaetium yamadae
alongside transfer
ammonium zinc sulfate
authority of purchase
automatic propeller synchronizer
bait advertising
basic vegetative period
bought into
bound task set load module
branding iron
Cadra
canoe-pair
carborundum disk
chaffaire
chondral
cochliobolus stenospilus
combination vessel
computer-games
concertacion
conical nose
crossed-belting
crystallographic parameter
curtain tune
device control area
diaphragmatic type of mitral stenosis
duplication of the cube
estimated value
Federsee
flow constant
frequency identification unit
frieri
game fish
genus micrococcuss
gouldens
government-backed
grifters
grooved urethrotomy staff
halfaker
high-manganese pig iron
hillandale
hinged type connecting rod
homeomorphous
hop-yard
hydrofining-hydrocracking process
inner water
itching-powder
kansass
katallbaric centre
katona
kibed
kindra
knothole
leave no doubt that
light sensitive seeds
mainshocks
make good my retreat
Max Bruch
medicago echinuss
microminiaturise
mixed instruction
Mujahidin-e Khalq Organization
musculi suspensorius duodeni
never ending program
occhiu draculi (rumania)
oil hold
old-linest
on-bottom rod
open champion
organ transplantation ethics
Ostwald's curve
pseudoparaphyses
query string
rated current of generator
RAV-2
Rive-de-Gier
seaplane keel
Sembrancher
semiconvergents
shelterwood method
signance
sodium thioaurate
St-Denis-d'Oléron
streaking massage
subdural space
super-glues
ta yu chih wu
turnip cabbages
uindo
uniform cook
unsavourinesses
unsoul
Uxin
vanikoro helicoidea
Vichugskiy Rayon
voltage controlled gate module
wcst
whitemails
woehlerite