记录式发气性试验仪

Lesson 38 Text A Can't She Type? The well-known banker, T. J. Ellington, was at one time in his younger days the manager of a New York office. His secretary had been with him for many years, and knew

发表于:2018-12-02 / 阅读(249) / 评论(0) 分类 初级口语教程

I learnt all about evolution when I was about ten years old. I remember it clearly. I thought it was amazing. My mind was full of images of strange creatures crawling out of a green, soupy lake. Fish that had somehow developed legs and the ability to

发表于:2018-12-04 / 阅读(82) / 评论(0) 分类 听一分钟英文-E

Unit 14 Part B Text 1 Genetic Engineering: for Better or Worse? Technology is not only used to build spaceships and high-speed computers. It is also being used to create new plants and animals. This technology is known as genetic engineering. At the

发表于:2018-12-04 / 阅读(165) / 评论(0) 分类 全新版大学英语听说教程第三册

VOICE ONE: I'm Steve Ember. VOICE TWO: Charles Darwin And I'm Barbara Klein with EXPLORATIONS in VOA Special English. This month is the two hundredth anniversary of the birth of one of the most influential thinkers in science history. Charles Darwin

发表于:2018-12-07 / 阅读(162) / 评论(0) 分类 VOA慢速英语2009年(二)月

Bluegrass is often associated with the arrival of Celtic immigrants to the Appalachian Mountain region in the 1700s. American bluegrass music remains popular in many parts of the United States. Jam sessions, where musicians get together to play, can

发表于:2018-12-08 / 阅读(164) / 评论(0) 分类 VOA标准英语2010年(五)月

Sleep is very ancient. In the electroencephalographic sense we share it with all the primates and almost all the other mammals and birds: it may extend back as far as the reptiles. There is some evide

发表于:2018-12-15 / 阅读(197) / 评论(0) 分类 新东方背诵文选

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Creationists often publish lists of a few dozen scientists who doubt Darwin. So in 2003, the National Center for Science Education put together a list of 200 scientist

发表于:2018-12-24 / 阅读(105) / 评论(0) 分类 Scientific American(二)月

I learnt all about evolution when I was about ten years old. I remember it clearly. I thought it was amazing. My mind was full of images of strange creatures crawling out of a green, soupy lake. Fish that had somehow developed legs and the ability to

发表于:2018-12-26 / 阅读(85) / 评论(0) 分类 纯正英语一分钟

A little old lady goes to the doctor ... and says,

发表于:2019-01-02 / 阅读(148) / 评论(0) 分类 英文笑话

Broadcast: Feb 13, 2003 Demand for electricity is growing in Mexico, but the state-owned oil company, known as Pemex, is reducing the amount of natural gas it can provide for electrical generation. Th

发表于:2019-01-03 / 阅读(144) / 评论(0) 分类 VOA2003(上)-国际时讯

SCIENCE IN THE NEWS - Evolution and Intelligent Design By Jill Moss Broadcast: Tuesday, March 15, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Sarah Long. VOICE TWO

发表于:2019-01-04 / 阅读(97) / 评论(0) 分类 科技之光

We usually think of evolution as something that happens over eons, in remote places where people rarely venture. Not something that happens around the backyard birdfeeder in just a few decades. But a study in the journal Current Biology suggests that

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 Scientific American(十二)月

Explorations - Great Thinkers: Charles Darwin and Evolution STEVE EMBER: Welcome to Explorations, in VOA Special English. I'm Steve Ember. This week, Barbara Klein and I tell about one of the most influential thinkers in science history. Charles Darw

发表于:2019-01-12 / 阅读(107) / 评论(0) 分类 2011年VOA慢速英语(十一)月

Shaping Human Evolution at the Smithsonian 史密森尼美国博物馆塑造人类进化过程 Welcome to American Mosaic from VOA Learning English. Im June Simms. Today on the show, we visit a museum where art and science help tell the story of huma

发表于:2019-01-12 / 阅读(98) / 评论(0) 分类 2014年VOA慢速英语(四)月

DAVID GREENE, HOST: Scientists have taken one more small step toward understanding what makes the human brain unique. As NPR's Jon Hamilton reports, they've identified a type of brain cell that exists in people but not in rodents. JON HAMILTON, BYLIN

发表于:2019-01-17 / 阅读(120) / 评论(0) 分类 2018年NPR美国国家公共电台8月

Do you have gas? Beginners. What kind of a question is that? Are you talking about my body or my car? Well, actually, I am talking about your car. Gas, or petrol, as it is called in England, is a big subject at the moment. Driving a car has become re

发表于:2019-01-28 / 阅读(110) / 评论(0) 分类 英语博客 A cup of English

By Robert Berger Jerusalem 02 April 2008 Israel is strengthening security on its home front in a sign of war jitters. As Robert Berger reports from VOA's Jerusalem bureau, Israel is casting a wary eye toward Iran. Israel's security Cabinet has decide

发表于:2019-01-30 / 阅读(158) / 评论(0) 分类 VOA常速英语2008年(四月)

Multi-media website explores human evolution Rosanne Skirble | Washington, DC 07 May 2010 'What's Hot in Human Origins' keeps you up-to-date on recent studies and research in the field. The human origins website at www.humanorgins.si.edu poses the ag

发表于:2019-02-02 / 阅读(108) / 评论(0) 分类 VOA标准英语2010年(五)月

One of the world's most remote inhabited islands is on the lookout for a new farmer, but with just one village and a population of only 265 people moving there may not be everyone's cup of tea. 最近,世界上最偏僻的小岛之一正忙着招一位

发表于:2019-02-06 / 阅读(173) / 评论(0) 分类 阅读空间

I was only alive to the condensed confidential comfortableness of sharing a pipe and a blanket with a real friend. 我的兴趣完全集中在跟一个知心朋友共吸一支烟斗。共盖一条毯子的这种精诚的舒适上了。 With our shagg

发表于:2019-02-25 / 阅读(131) / 评论(0) 分类 白鲸记
学英语单词
acct.
adopted children register
advance drawing change notice
atomic airburst
austroboletus taiwanensis
bangla deshes
BESRL
binary information
bow loading arrangement
butting-joint
calcisiltite
celtis koraiensis nakai
chopper modulation
chromatographable
Clochicinum
Coinage Security Fund
crimson-magenta
date conversion
dilly dally
direct insertion
drill gage
Dvinitsa
electrolytic pickling
enveigling
face-centered
famble
fast freight line
flagfeather
forestales
free alumina
free boundary electrophoresis
garnet zone
gastrotourists
Grolier
hot-finished tubing
I'm blind
inexhaustibility
inter-changeabilities
kernelless
lawyer of the corporation
Libritabs
magnetci thermometer
maintained markup
Malin More
megabit system
MEKC
microdrop
modes of transport
mononeural
muscle scar
musk-tree
Naver, Loch
negative line feed
Nevadian
non-conformer
non-purging type bulimia nervosa
parke-davis
Peloridiidae
potential demand
Prayssas
prima inter pares
PRX
put reliance in
pyschrophile
R1625
radiation aid
radiation chemical yield
ratio to moving average method
recombination-defective
repetitive operation
representative model
roundoff noise effect
scfh
searocket
sekihan
shelf sea
snow-whiter
space telemetry
spend like water
spindle hole
spinning manifold
spiritualizers
stationary random distribution
stichuss
stood sentinel
superior twin muscle
telephone vote service
three-dimensional magnetic field
thrice-favoured
Tijucas
torch cutting
trial of case
unsuffisance
uterus adenomyosis
vaskene
versatilous
Vychegda
war-ine
wear resistant rail
wheel-spinning
wooden maul
Zavodskoye