[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(459) / 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(253) / 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(235) / 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(300) / 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(154) / 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(221) / 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(249) / 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(280) / 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(197) / 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(226) / 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(371) / 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(216) / 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(244) / 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(209) / 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(192) / 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(335) / 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(175) / 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(179) / 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(250) / 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(157) / 评论(0) 分类 英语新闻
学英语单词
accessory shoe
alged malaria
andsech
angle shaft
anglics
anthophagy
articulated rotor
Aulopora
base 16
be decked out in
beam-accessed MOS
bigroot
Blanc-mange
bon-ballast track
broadcast signal carriage
burner gas cooler
cetophenylbutazone
characteristic parameters
creditor account
crossed field amplifier
crumbaugh
crutche
decades
demonships
desirability of investment
diagonal flange method
dogcatcher
Dokouma
double-headed tube bender
drill point angle
epizootic cerebrospinal meningitis
exalted-carrier reception
excessive delay angle protection
filariform
fly-head technique
fuel handling control room
general union
genus coeloglossums
glass fibre bundle
grateful for
have an attraction for
high pressure arc discharge
Home Hill
Hotte, Massif de la
Hull War and Strikes Insurance
incident neutron energy
indexers
inland marine underwriters association
jucker
kbpi
Kirchensittenbach
Lady with the Lamp
lecture-based
marcellas
mid-watch
Mukaihara
nouveau pauvre
omoclavicular
open fire tester
original jurisdiction
original style
osteitis cystica localisata
parino
partition coefficient(distribution coefficient)
peg away to
Penn State
periodate
polygonal dome
Polygonum filiforme
pomacentrus nagasakiensis
potassium antimony tartrate
Pozorrubio
procedure command
programmer defined macros
prophesizes
pseudomeira brevifurca
pseudoscience
radio frequency energy
raise the standard
reel taping machine
regard sth with equanimity
scoucers
semi-steel casting
Sepoti, R.
Shubat Enlil
slope piling
solanidin
squibling
Stenbar
tapping temperature
telescope structure
throuh
treatment of refractory copper ores process
unalignable
upper drum assembly
utility-grade
utraquist
wage freezes
wantful
war chest
wheat stem rust
wightii