六乙苯,六乙基苯

There are many arguments about the advantages and disadvantages of examinations. Some people think that examinations can help them review the lessons regularly, while others maintain that too many examinations have frustrated them. To me I think an e

发表于:2018-11-28 / 阅读(156) / 评论(0) 分类 疯狂英语易背作文

[00:00.00]Module 1 LEARNING METHODS [00:05.54]Unit 3 Some of the exams were very difficult. [00:11.24]4 Listen and complete. [00:15.06]Mum,I have my report here. [00:18.39]Great. Can you give it to me,please? [00:21.26]Sure. [00:22.78]Oh, this is for

发表于:2018-12-04 / 阅读(108) / 评论(0) 分类 外研社新标准初中英语九年级

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(135) / 评论(0) 分类 2014年VOA慢速英语(五)月

New IMAX Space Documentary Brings Images to Life 新的3D IMXA给生活带来新的享受 What we watched then were blurry and grainy TV transmissions. Now, the 45-minute IMAX documentary puts the aud

发表于:2018-12-08 / 阅读(75) / 评论(0) 分类 VOA2005(下)--环境科学探索

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(93) / 评论(0) 分类 VOA双语新闻 2014年1月

By Nancy Steinbach EDUCATION REPORT -July 25, 2002: SAT Examination This is the VOA Special English Education Report. Each year, millions of people around the world apply to study at American colleges

发表于:2019-01-06 / 阅读(93) / 评论(0) 分类 教育与新闻

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(117) / 评论(0) 分类 Scientific American(八)月

Technology Report - Scientists Develop Smartphone App for Eye Exams This is the VOA Special English Technology Report. More than two hundred eighty million people around the world have vision problems or are blind. The World Health Organization says

发表于:2019-01-12 / 阅读(100) / 评论(0) 分类 2011年VOA慢速英语(五)月

By Andre de Nesnera Washington 20 April 2006 As Iran continues to defy the United Nations Security Council by enriching uranium -- a process that could lead to building nuclear weapons -- the internat

发表于:2019-01-13 / 阅读(130) / 评论(0) 分类 2006年VOA标准英语(四月)

'Terrorists in Love' Examines Islamic Radicals How does a young man transform from a law-abiding middle-class citizen into a terrorist? Ken Ballen, a former federal prosecutor, spent five years trying to find answers to that question. The result is a

发表于:2019-01-13 / 阅读(106) / 评论(0) 分类 VOA标准英语2011年(十一月)

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(92) / 评论(0) 分类 VOA标准英语2014年(一月)

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(68) / 评论(0) 分类 白领英语晨读

By Scott Stearns Dakar 10 November 2009 Prosecutors at the U.N. Special Court for Sierra Leone have begun their cross-examination of former Liberian President Charles Taylor who is facing charges of war crimes and crimes against humanity. Former Lib

发表于:2019-02-02 / 阅读(73) / 评论(0) 分类 VOA标准英语2009年(十一月)

By Deborah Tate Washington 18 July 2006 The Bush administration's nuclear accord with the Indian government was the focus of a Senate committee hearing Tuesday, with witnesses underscoring the benefits to both the United States and India. ---------

发表于:2019-02-03 / 阅读(160) / 评论(0) 分类 2006年VOA标准英语(七月)

Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康

发表于:2019-02-07 / 阅读(125) / 评论(0) 分类 阅读空间

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(92) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(109) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(102) / 评论(0) 分类 万物简史

本期内容: A humble houseplant with a dash of rabbit DNA could help lower our exposure to indoor air pollution, new research suggests. Scientists have revealed that by inserting a rabbit gene into devils ivy the plant is able to clean the surrou

发表于:2019-02-20 / 阅读(92) / 评论(0) 分类 夏说英语新闻晨读

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(122) / 评论(0) 分类 TED演讲教育篇
学英语单词
acromyotonus
activity curve
agriculture pollution
arch rise
base casing
bed up
biocathode
bowgrace
bromatography
candle-lighter
canine infectious hepatitis virus
cantisano
capacitated facility location
carry out an experiment upon
Castilla-La Mancha, Comunidad Autónoma
central tubular
Cienbuterolum
coindication
collision dynamics
composite ALGOL symbol
compression molding material
conoscope
cornstalk
Dalton's alloy
density underflow
devadasis
drossier
East Millstone
ekaterinite
electrocyclic
electronic fuel injection system
family miridaes
flash a glance
forate
free pore space
GCB
geg
gin flzz
Girdle-Tailed
head butting
hinoki
holder of bill of exchange
humlock
hydraulic efficiency elevation structure
ignition knock
indicator panels
interior design graphics
killebrew
lafayettes
laparoflator
LDML
leader follower replication
Lonicera buchananii
lose grip
lucille balls
maxillopalatal
Mesona procumbens
mesoscales
mius
moiet
motortherapy
nasiobregmatic
naucrates ductors
nephropyelitis
nightbreeze
nitromide
non-waterproof
official letter
oily bilge separator
piano playing
Pinus densiflora var. ussuriensis
pit recharge
Pittenweem
pleasedly
point specifier
pulling capacity
ranids
re-sound
relief television
ring dances
Roncal, V.de
routed to destina tion
Schwarzkopf, H.Norman
sea-board
seeding period
selective arteriography
semi-shade
Serratula cupuliformis
sheet conductance
short wave telegraph telephone transmitter
shut one's shop window
Sporic
stage flotation
superheater unit
Sviyaga
table area
talloel
to the best of my knowledge
vertical composition
water-film separator
well-focussed beam
yearam