Studies that will be released today show that fish, birds and mammals in New England have significant amounts of mercury in their bodies. The studies find the toxic metal in some unexpected habitats and they suggest that power plants in the Midwest a

发表于:2018-12-17 / 阅读(133) / 评论(0) 分类 2009年NPR美国国家公共电台7月

The Mercury Mess By Samantha Levine / 2004, as first appeared in U.S. News nbsp; What are the dangers of mercury in fish? Can the mercury mess be cleaned up? 1 Are these fish safe to eat?” It’s a

发表于:2018-12-19 / 阅读(48) / 评论(0) 分类 彭蒙惠英语

beam, [bi:m] n 大梁(建筑中用作支撑的木材、金属或石头);光柱;臀围;平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,

发表于:2018-12-30 / 阅读(69) / 评论(0) 分类 不择手段背单词

Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma

发表于:2019-01-08 / 阅读(118) / 评论(0) 分类 英美文化

SCIENCE IN THE NEWS - Mercury in Fish / Life on Land / The Goldman Environmental Prize By Broadcast: Tuesday, May 11, 2004 (THEME) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm B

发表于:2019-01-30 / 阅读(189) / 评论(0) 分类 科技之光

By Paul Sisco Washington, DC 15 February 2008 Scientists have started analyzing data and images acquired when the Messenger space probe passed within 200 kilometers of the planet Mercury last month. It was the first flyby of the solar system's inner-

发表于:2019-02-06 / 阅读(78) / 评论(0) 分类 VOA常速英语2008年(二月)
学英语单词
aburagiris
Alnaschar's dream
antitragicus
ateec
b-or-not-a gate
barked out
beancurd
Belyy Uryum
bimstein
Blacklion
boulder-wall
brusman
Bunsei
bustite
calcareous corpuscle
camp-outs
cauchy criterion
chain and attachment
character by character
chew up the scenery
churrigueresco
clay foundation
coincidence senser
complete integrability
concrews
confectionery centre
crotalaria spectabiliss
cut adrift
cymbiola nobilis
dickite
differential temperature sensor
Dihydrex
dose-response carve
earthmother
electromagnetic compatibility and interference
epitokes
explosion engineering
fall characteristic
flower cuttle
funded liability
gerontocide
gift exchange
grow lights
gyroscopic stability
Halsted, William Stewart
houndsmen
hyperbaric solution
ideal critical diameter
indigo powder
inductance pressure transducer
isobacteriochlorins
karyomicrosome
L-cells
ligamenta tuberculi costae
lobe-finned fish
logical relationship
logical terminal subpool
major leak
marker velocity
mass surface density
metallic yarn
metallophosphoesterases
multilevel secure
necking technique
ngara-binsam (garabinzam)
non-irritants
nuclear instruments
Nya'ā
odor concentration
omarska
orbs
over the mark
perturbation of closed operator
phenothiazone
plasmosin
pre-pause
reserve for exchange loss
resistor color code
retiling
safety encolsed switch
sartoes
scrap briquetting press
separation point
shd
skeleton texture
snow chains
sorting equipment
spline coupling
steady state velocity
Styrax suberifolius
supply constraints
swingframes
table-football
talpade
thinking body
troglodyte
turn her back on
untoiling
wastelot
wear trial
whoopeeing
Yamato Basin