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(366) / 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(191) / 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(244) / 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(245) / 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(235) / 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(290) / 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(196) / 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(174) / 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(266) / 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(241) / 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(185) / 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(223) / 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(182) / 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(185) / 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(207) / 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(211) / 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(253) / 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(190) / 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(245) / 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(207) / 评论(0) 分类 白鲸记
学英语单词
ansible
automatic voltage regulator
backing paper
bampot
beaded lighting
Belgaum
between whiles
blackletter type
blood poison
boss hammer
bradly
breaking toughness
caesious
Cathedral City
clavigerate antenna
copartnered
crack monitoring system
cross-roll straightening machine
diagram ofintegration
differentiating transformer
disqualifying
dribble charging
effective moisture
engaging force
equal-volume
express alternate pcb
float system
full-tone original
gas coulomb-meter
ghafouri
girder load
go woolgathering
greenheads
handedly
heat creep tester
heuristic factory
home traffic
hoot owl
Hormofollin
impulse noise inverter
in one's blood
instrumental aggression
keyfobs
life elements
live the dream
make no difference
Marattiales
mijakite
minimum taxable ceiling
minimum volume
mixed-bed demineralizer
mortality table
multi-tool
multiengine
network strategy
neuropathogenicity
Okodu
olfactory pit
Osetic
oxide spot
packtong
paper coal
paramutation
passeboard
Phalaenopsis mannii
Piperazino-CS2
pitch frequency
plain knitting
plastics replicas
pleochroism
Plymouth porcelain
political correctitude
pomeranian sheep
product administration
profile shape parameter
proportional plus integral controller
pulp table
Rev Ver
RWTH
satellite data reduction processor system
save energy
scarus quoyi
scientific thought
selected-response test
sitting around
situs transversus
slab waveguide
stearidonic
step sth down
striate nuclei
Trachythecium
train frequency
under any circumstance
undiurnal
unrestricted grant
volta's law
wind-rights
wishlists
wood splitter
yellow ripening
ylikewise
ywoven