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(377) / 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(202) / 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(256) / 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(257) / 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(246) / 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(299) / 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(206) / 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(183) / 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(275) / 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(251) / 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(201) / 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(229) / 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(196) / 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(192) / 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(216) / 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(221) / 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(264) / 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(205) / 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(254) / 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(218) / 评论(0) 分类 白鲸记
学英语单词
achyranthes aspera l.
acquisition process
african-borns
alpha-emitting isotope
Alpsian
antiheumatic
arachnoid layer
arthrogryposis
back porch tilt
backscattering differential cross-section
base transit time model
beat it out
biloculate
break the habits
caramels
claraite
close inbreeding
commodity-money relationship
complex series
conditional gene targeting
delvon
denaturalized
direct substitution
door to door container transport
double circuit semi-vertical configuration
Earthscapes
enza
euchaeta concinna
extension lathe
flow of water
giant cell sarcoma
half-wave vibrator
heater hose coupler
high-density channeled array
homeland defense
Howard, Bronson
income redistributing account
incremental duplex
instopping
itchings
job-lot system
judge's statement on decision
keying ring
Kiboga
landmeasure
Lazada
lehmbruches
lime-punch
LUB (least upper board)
magmatic plug screened hydrocarbon reservoir
Manatsuru
mannopyranose
metric standard
mixing functions
Moko disease
Monlz tray
Montgolfier
moon bags
multiple loop feedback amplifier
naval forcess
neutron reemission
nominal generation
nonmotion
nonstimulation
nuclear insurance
packed-piston
Pechorskaya Guba
PIVD
polka-dot
portable belt converyor
power companies
primogeniture
principal dimension
r-rated movie
radio-acoustic method
rhinolambrus lamellifrons
roux
running at dropping water level
sale of business
satin bird
SAXS
shaygetz
spicerer
square staff
standard equipment
statistical quality control (sqc)
strobilanthes
tax cutback
Temple in Jerusalem
tilting floor
toastcrumb
tornadic thunderstorm
trickle-across effect
trophic-level
trust capital
two-space fluid coupling
tymorous
Vejprty
verbal substantive
wherever possible
yarn structure
zithromax