[网络] 营养级;营养阶层;营养水平

By Caty Weaver Broadcast: August 1, 2003 This is Steve Ember with the VOA Special English Environment Report. Last month a judge ordered the United States Army Corps of Engineers to begin to lower wat

发表于:2018-12-01 / 阅读(254) / 评论(0) 分类 VOA2003(下)-环境与健康

[00:00.00]Exercise 5 [00:03.40]Part A [00:07.71]You will hear Dr.Wilson,a Professor of linguistics, [00:13.56]talk about formal and informal language. [00:18.49]As you listen,answer Questions 1--10.by circling True or False. [00:26.75]You will hear t

发表于:2018-12-04 / 阅读(219) / 评论(0) 分类 全国公共英语等级考试五级

AS IT IS 2015-12-18 Hated Drug Company Head Arrested by FBI 美国黑心药业大亨被捕 A U.S. businessman once described as the most hated man in America was arrested Thursday. 曾被人们称为恶棍的美国商人于周四被联邦调查局逮捕

发表于:2018-12-08 / 阅读(212) / 评论(0) 分类 2015年VOA慢速英语(十二)月

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(287) / 评论(0) 分类 2009年NPR美国国家公共电台7月

Individuals' Blood Glucose Levels after Meals May Be Predictable预测血糖 High blood sugar levels are a risk factor for type 2 diabetes. Doctors today have only general dietary recommendations for how to control those levels, because theres no rea

发表于:2018-12-24 / 阅读(187) / 评论(0) 分类 2017年Scientific American(四)月

Mike: So Dusty, we were talking earlier, and you're telling that you're into marine biology, and that's kind of your background. So, tell me a little bit about why you like - what's your fascination with marine biology? Dusty: Well, the main thing is

发表于:2018-12-25 / 阅读(206) / 评论(0) 分类 原版英语对话1000个

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(237) / 评论(0) 分类 健康与环境

HEALTH REPORT – December 11, 2002: Mercury Levels in Fish By George Grow This is the VOA Special English Health Report. Two studies are adding to the debate about the health risks of eating fish con

发表于:2019-01-07 / 阅读(198) / 评论(0) 分类 健康与环境

By Melinda Smith Washington, DC 01 September 2006 watch Nicotine Study Smoking a cigerette A report issued this week shows that major American tobacco companies have increased the level of nicotine in their cigarettes, making them more addictive. VO

发表于:2019-01-12 / 阅读(262) / 评论(0) 分类 2006年VOA标准英语(九月)

Tests Show Levels of Arsenic in US Rice Two hundred different types of rice and rice products tested by both the non-profit research group, Consumer Reports, and the U.S. Food and Drug Administration [FDA], contained varying levels of different forms

发表于:2019-01-13 / 阅读(205) / 评论(0) 分类 VOA标准英语2012年(九月)

Ocean Levels Rising Fast on US Coasts Ocean levels are rising faster and higher on both coasts of the United States than in other parts of the globe, according to two new studies, and California could be especially hard hit. There will be about one m

发表于:2019-01-13 / 阅读(207) / 评论(0) 分类 VOA标准英语2012年(六月)

StudyFindsHighLevelsofBPAinCannedFoodforKids The industrial chemical BPA has been used to make hard plastic bottles and the lining of food cans for decades. After studies indicated that the chemical could play a role in cancers, heart disease and abn

发表于:2019-01-13 / 阅读(156) / 评论(0) 分类 VOA标准英语2011年(九月)

DAVID GREENE, HOST: The amount of carbon dioxide in the air is rising because of human activity. And NPR's Merrit Kennedy reports that scientists around the world are trying to understand how more CO2 is going to impact the plants we eat. MERRIT KENN

发表于:2019-01-17 / 阅读(157) / 评论(0) 分类 2018年NPR美国国家公共电台6月

Shanghai Takes Measures against Rising Sea Levels Zhang Zhenyu, of the Shanghai Flood Risk Information Center spokesperson, said the seawalls virtually encircle half of the city. These are all the sea walls we have built, including from Hangzhou Bay

发表于:2019-01-19 / 阅读(191) / 评论(0) 分类 2015CRI中国国际广播电台

Mike: So Dusty, we were talking earlier, and you're telling that you're into marine biology, and that's kind of your background. So, tell me a little bit about why you like - what's your fascination with marine biology? Dusty: Well, the main thing is

发表于:2019-01-25 / 阅读(220) / 评论(0) 分类 英语趣味课堂

HEALTH REPORT - PSA Levels and Prostate Cancer By Jerilyn Watson Broadcast: Wednesday, June 09, 2004 This is the VOA Special English Health Report. Many older men are tested each year for cancer of th

发表于:2019-01-30 / 阅读(197) / 评论(0) 分类 健康与经济

By Melinda Smith Washington, DC 05 October 2006 watch Athletes Heart Risk One of the leading causes of death among young athletes on the playing field or court is a heart condition called Hypertrophic Cardiomyopathy. But the results of a 25-year stu

发表于:2019-02-03 / 阅读(279) / 评论(0) 分类 2006年VOA标准英语(十月)

Since the April 20 explosion and fire that sank the BP Deepwater Horizon off-shore oil rig, about 800,000 liters of crude oil a day have been spewing from the broken well into the Gulf of Mexico. The massive spill is threatening marine life, commerci

发表于:2019-02-05 / 阅读(282) / 评论(0) 分类 VOA标准英语2010年(五)月

WASHINGTON, March 30 (Xinhua) -- A trace amount of radioactive(辐射性的) iodine(碘) has been found in a sample of milk from the west state of Washington, the U.S. Environmental Protection Agency and the Food and Drug Administration (FDA) sai

发表于:2019-02-11 / 阅读(220) / 评论(0) 分类 英语新闻

Smog levels in Beijing have hit the 'Hazardous' mark again just 2 weeks after recording one of the worst cases of air pollution. The PM 2.5 monitoring systems in the Chinese capital showed readings of around 400, which is considered hazardous. That's

发表于:2019-02-21 / 阅读(181) / 评论(0) 分类 英闻天下
学英语单词
9-azafluorene
a cluster
aeromachus inachus formosana
aquilegia
aspartylglutamate
Asuro
autographic pyrometer
average usages of a component
axenic culture
Back together!
bitten by insect
brownbagger
caisson dock gate
calcium titanate porcelain
callus wood
cold vaporizer
come into question
complemented element
conversion factor in synthetic job
conveyablest
copper wire loose anchor
crche
deal of meter
descending chromatorgraphy
Differential modulation.
do someone the pleasure
doping and dopant
drainage facility
drum heads
duration of flood
exposure chart
Exton's quantitative reagent
eyestripes
filler retention
Fovea submandibularis
free floating wave meter
garrulax sannio
Gdynian
glottallings
hard copy interface
have a shy at something
hotel-type
hypergroupoid
implorers
inantheriferous
inter-organization
Jensen's sarcoma
job offer
Joseph Kennedy
Kuband
Kōyaguchi
lacta
last invoice method
LDB
leopard moth
level(l)ing block
mancave
melampsora laricis hartig
menopausal flushing
misadventure
mode flag
mold finish
musinia pk.
nail-bed function
non-serbs
nonimpact printing mode
nordegren
o-hydroxybenzolisonicotinyl hydrazone
occupation licences
on the sidelines
oncredit
orthozirconate
parakrithe shihyungi
Pavy's tests
personnel research board
pitch deformation angle
placard speed
proatlas
propagation delay path
Pyradone
raise one's stake
Ram digital-to-analog converter
relev? devant
ripienists
schlotheimia rugulosa
second gears
side filling fork
spillionaire
statistical stock control
stretchling
surrender ill-gotten gains
T tubes
threuth
tip-it
transvrsal
tribes-peoples
Trisegmentectomy
tunnel exit
unbalanceable
uranium bar
utility checker
vanity units