[核] 人工放射性源

Variety is the Source of Creativity Variety is the source of creativity. Variety injects the fluid of creativity into the most hollow minds. To ensure a triumphant career, variety combined with flexibility to fit in diverse circumstances is the major

发表于:2018-11-30 / 阅读(361) / 评论(0) 分类 24篇魔术美文串记4级词汇

Recording technology has changed a lot over the years, but you can still do one essential thing. You sit in front of a microphone and you tell a story, which here we are again this Friday morning because it's time for StoryCorps. It's an oral history

发表于:2018-12-02 / 阅读(174) / 评论(0) 分类 2007年NPR美国国家公共电台

Scientists at the Massachusetts Institute of Technology (MIT) have created what could be a breakthrough in providing clean, alternative energy. Researchers have invented an artificial leaf that splits water into hydrogen and oxygen and stores the ene

发表于:2018-12-07 / 阅读(157) / 评论(0) 分类 创新英语

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the

发表于:2018-12-15 / 阅读(207) / 评论(0) 分类 新东方背诵文选

Researchers Create Artificial Skin With Sense of Touch Scientists have recently made considerable gains in creating human-like artificial limbs, but they still look and feel artificial. That could change with a development from South Korea. Researche

发表于:2018-12-16 / 阅读(82) / 评论(0) 分类 VOA标准英语2015年(一月)

Voice 1 Welcome to Spotlight. Im Ryan Geertsma. Voice 2 And Im Anne Muir. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 3 You have got to go in spring. I

发表于:2018-12-19 / 阅读(107) / 评论(0) 分类 环球英语 Spotlight

MR CAVORS FLYING MACHINE When I first met Mr Cavor, he was about to finish building the machine in which he planned to travel to the moon. As it had neither wings nor an engine, I was amazed and asked him how his machine could fly. The secret lay in

发表于:2018-12-29 / 阅读(168) / 评论(0) 分类 人教高中英语高二

Artificial Muscle Brings Back Blink A study in the Archives of Facial Plastic Surgery reports the development of an artificial muscle system that could restore the ability to blink to stroke and injury patients. Cynthia Graber reports Most of us blin

发表于:2019-01-02 / 阅读(204) / 评论(0) 分类 60秒科学

今天我们要学的词是source。 Source, 意思是来源。 Social Security is a reliable income source for seniors, 社会保障是美国老年人可靠的收入来源。 Police have received thousands of tips, according to a source close to the

发表于:2019-01-07 / 阅读(124) / 评论(0) 分类 英语每日一词

By Kari Barber Dakar 21 March 2008 In many African countries, few people have access to computers and the Internet. Experts say this is hindering development and preventing students from being able to compete for jobs. At a conference in Dakar this w

发表于:2019-01-07 / 阅读(136) / 评论(0) 分类 VOA标准英语2008年(三月)

Mr Cavors Flying Machine When I first met Mr Cavor, he was about to finish building the machine in which he planned to travel to the moon.As it had neither wings nor an engine,I was amazed and asked him how his machine could fly.The secret lay

发表于:2019-01-09 / 阅读(276) / 评论(0) 分类 高中英语听力人教版第二册

Samasource Provides Jobs for Poor Via the Internet The World Bank says 1.3 billion of the world's seven billion people live in extreme poverty, surviving on less than $1.25 a day. Aid organizations have long relied on charitable contributions to help

发表于:2019-01-13 / 阅读(151) / 评论(0) 分类 VOA标准英语2011年(十二月)

Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani

发表于:2019-01-14 / 阅读(174) / 评论(0) 分类 VOA标准英语2011年(四月)

Scientists say they have successfully tested artificial blood vessels grown in the laboratory. In a heart bypass operation, surgeons typically remove a vein from a patient's leg and use it to replace blocked arteries that feed the muscles of the hear

发表于:2019-01-14 / 阅读(124) / 评论(0) 分类 VOA标准英语2011年(二月)

By Melinda Smith Washington, DC 15 February 2008 Obesity is becoming a worldwide problem, even in developing countries. But diet drinks and food prepared with sugar substitutes do not seem to help curb people's appetites. Now a new study may provide

发表于:2019-01-19 / 阅读(109) / 评论(0) 分类 VOA常速英语2008年(二月)

Alan, Canada speaker How do I get my news? Well, when I lived in Canada I got my news from primarily watching television and reading the newspaper. But since I moved over to Asia and started using computers more and more I find that I get my main sou

发表于:2019-01-23 / 阅读(201) / 评论(0) 分类 一起闲话英语-English Chitchat

In the spring of 1904, Rutherford traveled to London to give a lecture at the Royal Institutionthe august organization founded by Count von Rumford only 105 years before, though that powdery and periwigged age now seemed a distant eon compared with t

发表于:2019-01-29 / 阅读(105) / 评论(0) 分类 万物简史

今天我们要学的词是 artificia。Artificial 人造的。artificial intelligence 人工智能。不久前,The FDA approved a new artificial retina device that would help some people regain part of their sight. 美国食品和药物管理局批准

发表于:2019-01-30 / 阅读(110) / 评论(0) 分类 英语单词荟萃

Artificial Speech Mimics Real Thing 合成声音发展渐入佳境 未来虚拟声音真假难辨 At a University of Arizona laboratory, Professor Brad Story analyzes the voices of singers, actors and public speakers both live and on audio tape. 在亚

发表于:2019-02-12 / 阅读(177) / 评论(0) 分类 VOA标准英语2011年(十一月)

A scare in Japan over beef contaminated with radioactivity spread on Sunday, with more areas of the country reporting tainted meat. Japanese media say meat from 132 cattle that ate straw contaminated with extremely high levels of radioactive cesium h

发表于:2019-02-18 / 阅读(86) / 评论(0) 分类 英语新闻
学英语单词
abdominal hodgkin's disease
anemone rivularis ham.
at (the) worst
automatic antenna pattern plotter
beauxarts
belt driven type
Bendugu
bethylid
blimps out
breaking-down of hydrocarbons
breathing spells
bulboreticulospinal tract
cacioppo
car pass
carraig na siuire (carrick-on-suir)
cartilaginous calcification
central dense granule
checking digit
clergy-house
coincidence scaler
colorblindness
compiss
Copernicans
copper dish evaporation test
copper pheophytin
corticium gramineum ikata et matsuura
coulometrictitration
coxofemoral joint
crepidomanes minutum
decision parameter
direct sound
drillmaster
eighteen carat lie
emia
estate-grown
F-fator
far field potential
Fazio-Londe type
fill metal
flame furnace
gas radioactivity meter
giga bytes
granulation of slag
green goose
hand sieving
Herzo
Hillary-care
hulloaed
influence surface
kaycee
Laruellian
Law of Property Act
licurgo
luleburgaz
messed up
multireading feature
murder the King's English
needle-fish
net present value index
nonfliers
packing tightening
palaeoentomologists
parachute flare
periphyton
pierce sth through
plywd
poor-risk
postacrosomal
private-owned corporation
reseater
rotary viscosimeter
schmalziest
secondary levee
seed specific weight
sheet charge
shipentine
silt lodging
slop-sellers
smoke screening manoeuvre
sodium diacetate
Sottern
specialty of bone-knitting
spening power
starting-up course
Stokes theory
straddle bug
sulfurated lime solution
sunshine states
surface inclusion
tagua nut
tartronic
task rate
teaching english
training curriculum
Ulmus laciniata
unbreached
uppercase letter
void distribution
weekly check
what goes around comes around
width-variation
young jeezy