[电] 准费米能阶

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(94) / 评论(0) 分类 VOA2003(下)-环境与健康

The Art of Smart Guessing Several years ago, interviewing candidates for a job, I grew tired of asking What experience do you have? So I decided on a one-question quiz to find out how resourceful a thinker the new hire might be. Here it is: You are o

发表于:2018-12-07 / 阅读(79) / 评论(0) 分类 午后咖啡

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(113) / 评论(0) 分类 数学英语

Whether you like it or not, we use numbers every day. 不管你喜不喜欢,我们每天都会用到数字。 Some numbers, such as the speed of sound, are small and easy to work with. 有些数字比如音速,数值不大,容易计算。 Other

发表于:2018-12-18 / 阅读(57) / 评论(0) 分类 TED演讲教育篇

Unit 25 The Art of Smart Guessing Several days ago, interviewing job candidates, I grew tired of asking What experience do you have? I decided on a quiz to find out how resourceful a thinker the new hire might be. Here it is: You are on a yacht saili

发表于:2018-12-30 / 阅读(63) / 评论(0) 分类 英语流行话题阅读:语境识词4500

By Jerilyn Watson Broadcast: November 14, 2004 (THEME) VOICE ONE: I'm Sarah Long. VOICE TWO: And I'm Steve Ember with People in America in VOA Special English. Today we report about two scientists, J. Robert Oppenheimer and Enrico Fermi, who helped l

发表于:2019-01-02 / 阅读(80) / 评论(0) 分类 名人轶事

PEOPLE IN AMERICA - Oppenheimer and Fermi By Jerilyn Watson Broadcast: Sunday, November 14, 2004 (THEME) VOICE ONE: I'm Sarah Long. VOICE TWO: And I'm Steve Ember with People in America in VOA Special

发表于:2019-01-02 / 阅读(83) / 评论(0) 分类 People in America

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(74) / 评论(0) 分类 健康与环境

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(139) / 评论(0) 分类 Scientific American(十)月

VOICE ONE: I'm Sarah Long. VOICE TWO: And I'm Steve Ember with People in America in VOA Special English. Today we report about two scientists, J. Robert Oppenheimer and Enrico Fermi, who helped lead the world into the nuclear age. VOICE ONE: It is J

发表于:2019-01-11 / 阅读(101) / 评论(0) 分类 VOA慢速英语2009年(六)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(94) / 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(104) / 评论(0) 分类 VOA标准英语2012年(六月)

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(63) / 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(96) / 评论(0) 分类 2015CRI中国国际广播电台

The Fermi Paradox Back in 1950, the Nobel prize-winning physicist Enrico Fermi was having lunch with friends. Conversation turned to the possibility of extraterrestrial life. According to the popular story, Fermi fell silent for a moment and then ask

发表于:2019-01-26 / 阅读(76) / 评论(0) 分类 英语听力文摘 English Digest

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(98) / 评论(0) 分类 健康与经济

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(97) / 评论(0) 分类 英语新闻

You all know this story. 你们都知道这个故事. In the summer of 1950, 在1950年的夏天, Enrico Fermi, the Italian-American physicist Enrico Fermi, 美籍意大利心理学家 and atomic-pile builder, 和原子堆创造者 went to lunch at L

发表于:2019-02-14 / 阅读(71) / 评论(0) 分类 TED演讲科学篇

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(91) / 评论(0) 分类 英闻天下

Weve recently been talking about the Fermi Paradox, attributed to Nobel-winning physicist Enrico Fermi. According to reasonable estimates of how many stars have planets, how many planets may be suitable for the evolution of organisms, and so on, our

发表于:2019-02-24 / 阅读(76) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
Abbas(s)id, Abbasside
actual horse-power
alarm stop knob
audience flow theory
avalanche rectifier
basic cognitive process
bravaisite
buckle oneself to
carotid sinus syncope
castor beam sheller
cathodic protection equipment
census
clisis
consolidated bill of lading
cooperativeness
curiality
d.c. arc welding
dark-browns
disdignify
eister
El Harrach
Eliomys
Eodiscina
expose to light
feed regulation
fetal fluids
First Reich
flat-built tyre
Fleurier
gastrula period
gedans
gemma gustatoria
genus pomolobuss
graphics-baseds
gravity low
hoisting characteristic chart
honeier
human leukocyte antigen histo-compatibility system
integrated market
invite purchase
keft
kvases
levator palati
location of apparatus
low temperatrue brittleness
magnetic multiaperture element
major-conference
majority principle
membrana obturans stapedis
misapplied
multi-point-scanner
must-pass
N'ko
observation at interval
oil return hole
on-line processor
orthopaedics
out of the frying into the fire
outer glia membrane
outside share
Overbreathing
pale ales
periappendageal
phonological and calligraphical synthesize coding
pitch feedback mechanism
polystichomonad
pressure-gradient analogy
programmed grammar
protecting hood
proterozoic group
PS (parity switch)
puddler
pupillary aperture
puppet governments
random walk hypothesis
recanvased
restrictor screw
retrofit testing
Schluchsee
scorners
sensitization corrosion
sinuate disc handwheel
soupirant
spectrographic analysis
spin rooms
spoilage random fluctuation
ST_mathematics-and-arithmetic_statistics
suppressed carrier transmission
Symplocos heishanensis
syndrome of stagnant-heat invading collaterals
Tabernas, R.de
tarbush
telex number
texture-tone analysis
thescelosaurids
time-composition curve
undeodorized
unement
unforsaken
unreplicated
war-horns
work output