[医] 硫化硒

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(137) / 评论(0) 分类 cnn2009年(十一)月

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(206) / 评论(0) 分类 60秒科学

99 吸收金属原料的植物有助于抗癌药品的研制 AGRICULTURE REPORT September 25, 2001: Plants that Absorb MetalsBy George Grow (Start at 1'00

发表于:2019-01-02 / 阅读(140) / 评论(0) 分类 科技之光

From VOA Learning English, this is the Health Lifestyle report. Garlic is one of the most common cooking ingredients around the world. Many dishes in Europe, Africa, Asia and the Americas use this strong-flavored vegetable. Garlic is similar to other

发表于:2019-01-12 / 阅读(197) / 评论(0) 分类 2016年VOA慢速英语(十二)月

Study Shows Vitamin E Increases Prostate Cancer Risk A number of medical studies over the years suggested that vitamin E, taken as a dietary supplement, might help prevent prostate cancer. But new research finds not only that the earlier studies were

发表于:2019-01-14 / 阅读(136) / 评论(0) 分类 VOA标准英语2011年(十月)

Scientists Suggest Adding Selenium to Diets in Malawi The study, which was published in the journal Scientific Reports, found that most Malawi soils do not have an adequate amount of selenium required for human nutrition. In the report, researchers a

发表于:2019-01-14 / 阅读(143) / 评论(0) 分类 VOA标准英语2013年(三月)

Black Tongues and Stomach Aches Don: Oh, no, Ya?l, I think I'm having a medical emergency. Quick! Call an ambulance. Ya?l: A medical emergency, Don? Are you sure? You look fine to me! D: But I'm not. This morning, I had a terrible stomach ache. And n

发表于:2019-01-26 / 阅读(125) / 评论(0) 分类 英语听力文摘 English Digest

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(138) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
8-track
a judgment of guilty
Abu Sayyaf Group
Al Fayed
ambrosiate
aminoacyltransferases
Assyriac
asynergic movement
bashedness
belauensis
black wages
blind sb with science
capture/recapture sampling
ceoe
charge-off
colchicoside
connectins
Consecon
copake
database quality control
Deslipoze
driven transmitter
eaten in
electronic dynamometer
elway
endocycles
endometriosis coli
enlumines
equivalent profile
exit point
featured products
film overlay
filter insertion loss
finkel
flat condyloma
formation compression
fuel-metering needle
future participle
G6
genus manglietias
give a glance
gotten away with
high byte
horned melons
hot cloning
I spy strangers.
indicator disc
interruption rate
jnger
khlebnikov
Koran-aloner
lick up
Lyot filter
Macroptilium lathyroides
marine thermoelectric refrigerating unit
minor modification
Mont-Joli
multimediatize
multipartite contract
nabc
nuclei tuberes
override sold-to
permanent-magnet focusing TWT
pigmean
pilmelite (pimelite)
plain compression ring
poeples
poluostrov
pontifices
poor quality of the ores
proportional control action
pursuit of profit
put something on its feet
Qumbu
railway train
residual thaw zone
revitalize
Scanno
semi-perfect
shanghaed
signatory
sirotka
strip processing
styrax pill for coronary heart disease
telescopic hand-held laser rangefinder
test-tube brush
Testavol
tholeiitic texture
tie strap
to be borne by
to give air to...
toss a coin
tuthill
uneconomic site
untrophied
utilizes
vaginularia trichadea f
viscoelastic rheometer
whensomever
widnes
withoute
wooh