逆拉曼效应

Back at the explosives lab, examiners use a high-tech instrument called a Raman spectrometer, a device that determines if a package contains explosive material. With the Raman, what we are doing is th

发表于:2018-12-07 / 阅读(128) / 评论(0) 分类 揭秘联邦调查局

India and Pakistan Commit to Building Gas Pipeline 印度与巴基斯坦合建天然气管道 India and Pakistan say work on a gas pipeline linking Iran to India via Pakistan could begin next year. Of

发表于:2018-12-08 / 阅读(133) / 评论(0) 分类 VOA2005(下)--全球经济要闻

分集介绍:本集主要是对与会人士致以问候和欢迎,并表示感谢。首先感谢会议组织者,特别提到事先告知成本值得其他同事借鉴,其次感谢各位学者的文稿,再特别感谢公司人士的出席。另

发表于:2018-12-09 / 阅读(333) / 评论(0) 分类 第二届金融与统计学大会

作文和听力,阅读一样,可以早做准备。现在流行的复习方法是从下半年复习,甚至是考试前3个月才开始复习。复习的教材无一例外的是考试虫系列的万能作文:背一二十篇作文模式,背一二

发表于:2018-12-12 / 阅读(119) / 评论(0) 分类 英语学习方法

This is Scientific American's 60-Second Science. I'm Christie Nicholson . Got a minute? The lure of gambling clearly comes from the chance of winning. But how exciting is it to almost win? A study in the February 12th issue of the journal Neuron look

发表于:2019-01-08 / 阅读(203) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(181) / 评论(0) 分类 Scientific American(八)月

在中国,普通话作为官方语言的地位日益巩固。然而在英国,为什么大多数的英国人不遵循标准的发音[standard pronunciation or RP(received pronunciation)],却喜欢操着一口地方口音呢?难道英国人不认

发表于:2019-01-11 / 阅读(137) / 评论(0) 分类 实用英语

Gold, Oil Prices Up as Investors Seek Safe Haven 投资者寻求避险:黄金、石油价格上涨 NEW YORK The up-and-down prices of oil and gold mirror the unsettled world situation, and both reflect the economic squeeze most nations currently face

发表于:2019-01-14 / 阅读(139) / 评论(0) 分类 VOA标准英语2016年(三月)

1. The work that Tim Pons and his colleagues published last week is basic research into the portion of the brain, the cortex, that one scientist says is responsible for all the interesting things we do. 剖析:在这个长句中, 共有两个定语从

发表于:2019-01-17 / 阅读(197) / 评论(0) 分类 雅思英语

Quite what Halley expected to get from him when he made his unannounced visit in August 1684 we can only guess. But thanks to the later account of a Newton confidant, Abraham DeMoivre, we do have a record of one of science's most historic encounters:

发表于:2019-01-29 / 阅读(114) / 评论(0) 分类 万物简史

Hong Kongs first leveraged exchange traded funds have launched in a bid to tap Asian demand for structured products, even as western regulators are examining the mechanics of leveraged and other riskier forms of ETFs. 香港首批杠杆交易所交易基

发表于:2019-02-01 / 阅读(129) / 评论(0) 分类 英语新闻

By Anjana Pasricha New Delhi 06 June 2008 India is coping with huge energy shortfalls as a growing economy raises demand for power. But as Anjana Pasricha reports from New Delhi, the government has pledged to cover the gap in five years. Electrician

发表于:2019-02-03 / 阅读(127) / 评论(0) 分类 VOA标准英语2008年(六月)

Heres one way to make sure you have perfect attendance in your class: 让你把全部注意力放在课堂上只有一种方法: Meet Pietro Boselli: Obviously, hes ridiculously good-looking. 来见见我们的彼得罗博塞利:看吧看吧,他真

发表于:2019-02-06 / 阅读(145) / 评论(0) 分类 阅读空间

India has signed its first contract to build nuclear power plants after the international community lifted an embargo on civilian nuclear trade with the country. The deal marks the end of India's nuclear isolation. Chairman and CEO of Areva, Anne La

发表于:2019-02-07 / 阅读(124) / 评论(0) 分类 VOA标准英语2009年(二月)

You know how it goes: youre trying to talk to your grandchildren, but theyre constantly checking their beeping phones. Im listening . . . they insist. Except you know only too well theyre not. At home, over dinner, you want to catch up with your husb

发表于:2019-02-07 / 阅读(191) / 评论(0) 分类 阅读空间

India is coping with huge energy shortfalls as a growing economy raises demand for power. The government has pledged to cover the gap in five years. 由于国内不断增长的能源需求,印度正在面对一场严重的能源短缺。印度政府希

发表于:2019-02-14 / 阅读(136) / 评论(0) 分类 VOA双语新闻 2008年6月

和同事聊天时,她突然问我:当时,他是怎么向你求婚的,浪漫吗?我一愣,随即笑了:我老公是很木讷的人呢,你说会浪漫吗?虽然这样说,我心里却泛起甜丝丝的感觉来。他确实从来不浪漫,他的求婚没有

发表于:2019-02-18 / 阅读(159) / 评论(0) 分类 英语美文

Over the last 13 years, investors have experienced some of the largest financial bubbles in history. Asian currencies rose and fell, technology and Internet shares suffered staggering losses, oil and other commodities rode a wild roller coaster, and

发表于:2019-02-18 / 阅读(122) / 评论(0) 分类 阅读空间

一. 上升增长1.add up to 增加了eg. The total amount of added up to 14 billion pounds(14%) in 1994. 2. to jump to / to soar to 一跃达到/ 猛增到 eg. The total working days lost soared to 10 million in 1979. 3.an increase of ab

发表于:2019-02-18 / 阅读(185) / 评论(0) 分类 四六级写作指导

Law of Supply Demand: This is the founding block of economics. Whenever supply of something increases its price decreases and whenever supply decreases price increases. Thus, when you have excess production of corn, food prices decrease and vice vers

发表于:2019-02-25 / 阅读(152) / 评论(0) 分类 英文语法词汇
学英语单词
abrin
algosol
amebocytogenous
anetoderma of alexander
antennal case
anvil cap
aquatic toxicity
balance of retained earnings
Bereka
bitter as wormwood
Bizanet
Blumeopsis
build up in the hole
Bulwer
burgherly
came alive
campish
claimeth
clap
coaduroy
coke whore
concentrated reflector
consummatory response
contact calibrating machine
continuous-field method
drinking-water
ego-enhancing
entity class
falieri
familially
fancyings
finish up
frame diagram
FrusemideFurosemide
functional fiber
Gettiered
graviportal
hard-facing metal
Harthausen
high precision machine tool
high voltage regulation factor
hitch coupler
homoclisy
hungry look
hyperbolic trigonometry
idec
impedance transforming filter
in a degree
inpaint
interference fringe
itemises
Jiuqi Niantong Wan
kagok
lanthanum sesquioxide
laodong
liquid envelope
live-out maid
lovat
macao monetary units
material
mathematical reasoning
medulline
memory decoder
misplant
myrosin cells
natural notes
non-dividing
non-marketable
oleum aurantii
opposite algebra
Ormosia coarctata
outranked
panbabylonism
panidiomorphic granular
premium returns
prevention of cycling
profit percent range
quantum limit to detection
release build
relief engraving
resistance start motor
rock-opera
rotational f1ow
Sancho III
Setin
shadkhan
simulation software
simule
spin-dependent scattering
Striders
sulfruic acid
tabarder
take a long cool look at something
tape adapter
therapize
trade in brisk
tubercularize
tuberculoid
Tājābāra
under-deterrence
underpriced
vermicomposts