烷基三甲基季铵化合物

Section A [00:01.23]1. W: Have you checked it for me? [00:04.26]M: Yes.There are temporary vacancies at the moment,but you may look back in a month. [00:09.40]Q: What does the woman want to be? [00:12.38]2. M: I'd like to book a flight to Munich for

发表于:2018-11-29 / 阅读(153) / 评论(0) 分类 决胜四级听力必备

Today's show goes out to Law Enforcement Officer Memorial High in Florida and North Kansas City High in Missouri. It's great seeing some of your students at the CNN Center recently! Today on CNN Student News, a match made in the wireless world: We're

发表于:2018-12-02 / 阅读(66) / 评论(0) 分类 CNN2011年(三)月

Grammar Girl here. Todays topic is the complex-compound sentence. Guest writer Sal Glynn writes: Most writers worth their fingertip calluses begin as avid readers. We read books, magazines, and websites indiscriminately until we start to notice the w

发表于:2018-12-07 / 阅读(86) / 评论(0) 分类 英语语法 Grammar Girl

In business, Optus has called for Telstra's proposals on its participation in the national broadband network to be blocked. Optus' chief executive Paul O'Sullivan says Telstra's current plan for the separation of its retail and wholesale arms wholesa

发表于:2018-12-11 / 阅读(94) / 评论(0) 分类 澳洲ABC新闻快递2011年

[00:01.45]Exercise 6 Listen to the lecture again [00:05.04]and complete the fatfiles. [00:08.94]Pronunciation [00:09.55]Exercise 8 Listen to the lectrue again [00:13.06]and take note of the pronunciation [00:15.08]of the compound words. [00:17.82]Exe

发表于:2018-12-13 / 阅读(133) / 评论(0) 分类 北师大版高中英语模块8(选修)

addition [ə'diʃən] n.加,增加(量) boss [bɔs] n.老板,工头 compound ['kəmpaund] n.复合物,化合物 difficult ['difikəlt] a.困难的 expert ['ekspə:t] n.专家,能手 headquarters ['hed'kwə:təz] n.司令部,指挥部,总部

发表于:2018-12-19 / 阅读(185) / 评论(0) 分类 TED演讲教育篇

Intonation can indicate completely different meanings for otherwise similar words or phrases. For example, an English teacher teaches English, but an English teacher is from England; French class is where you study French, but French class is Gallic

发表于:2018-12-27 / 阅读(53) / 评论(0) 分类 美式英语正音训练

坚持不懈,直到成功。 我们每天的奋斗就像对参天大树的一次砍击,头几刀可能了无痕迹。每一击看似微不足道,然而,累积起来,巨树终会倒下。这恰

发表于:2019-01-03 / 阅读(137) / 评论(0) 分类 四六级词汇与结构练习

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(123) / 评论(0) 分类 农业与发展

1. Authorities in Utah say they found no signs of six trapped miners when they lowered a camera down to where they think the men are located. This is their second effort to make contact with the men. Yesterday a microphone was lowered down to a separ

发表于:2019-01-08 / 阅读(125) / 评论(0) 分类 美联社新闻一分钟2007

AGRICULTURE REPORT - Scientists Find Compound in Smoke that Helps Seeds Grow By Mario Ritter Broadcast: Tuesday, July 20, 2004 This is Steve Ember with the VOA Special English Agriculture Report. A di

发表于:2019-01-11 / 阅读(94) / 评论(0) 分类 农业与发展

The United Nation's World Food Program says rogue members of Somalia's extremist al-Shabab group attempted to raid its compound late Sunday in the Somali town of Wajid, about 300 kilometers northwest of Mogadishu. World Food Program spokesman, Peter

发表于:2019-01-14 / 阅读(124) / 评论(0) 分类 VOA标准英语2009年(八月)

Exercise 11-8: Your Own Compound Nouns CD 4 Track 45 Pause the CD and build up your own compound nouns, both subject and object. 图片1

发表于:2019-01-15 / 阅读(54) / 评论(0) 分类 标准美语发音的13个秘诀 CD4

What do these five words have in common: hotdog, fireworks, well-being, waistline, sunset and ice cream? They could all describe a fun holiday celebration. For example: My holiday was wonderful! I went to a friends party and we laughed, ate and had a

发表于:2019-01-21 / 阅读(142) / 评论(0) 分类 2018年VOA慢速英语(十二)月

文本: Maiev:Elune be praised! I knew you would come, Shando Stormrage! Malfurion:Im glad we reached you in time, Maiev. Maiev:Priestess Tyrande, Im surprised you came in person. Are you here to _(1)_ your guilty conscience? Tyrande:I did

发表于:2019-01-23 / 阅读(74) / 评论(0) 分类 小龟乐游记英语短文

By Elizabeth Carlassare. Todays topic is compound interest. Albert Einstein is often quoted as having said something to the effect that compound interest is the greatest wonder of the universe. Its an urban legend, but it packs some punch! In todays

发表于:2019-01-30 / 阅读(128) / 评论(0) 分类 货币英语

AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have

发表于:2019-01-30 / 阅读(98) / 评论(0) 分类 农业与发展

U.S. President Barack Obama has announced that the world's most wanted terrorist(恐怖分子 ), al-Qaida leader Osama bin Laden, was killed by U.S. forces on Sunday at a compound deep inside Pakistan. Mr. Obama made the announcement during a liv

发表于:2019-02-04 / 阅读(82) / 评论(0) 分类 英语新闻

Dear Lexie,亲爱的莱克西: On your first day of college, let me congratulate you on your well-earned freedom. No more curfews[宵禁]. No more being dragged places you'd rather not be. No more of Dad's teachable[可教的] moments about respons

发表于:2019-02-09 / 阅读(81) / 评论(0) 分类 实用英语

ISLAMABAD, Feb. 25 (Xinhua) -- The living compound of the former al-Qaida chief Osama bin Laden in Pakistan's northwest city of Abbottabad is being demolished, said one local media report. Local Urdu TV channel Express said that the front part of bin

发表于:2019-02-18 / 阅读(80) / 评论(0) 分类 英语新闻
学英语单词
Abreks
acid pickling
acute oral toxicity
addictionology
agro-econimic zone
alkynylation
alloy clading
ambassis vachellii
arachnoidal
arbitration process
bevel square
bilane
blue lotuss
boiler water hardness
bolt sth on
break spark
bring bringing into service
broadband coaxial system
buon fresco
carrier-bag
clit teasers
cown cutting
cutis verrucosa tuberculosis
danish capitals
decimal coded
derivative title
Diebach
divergence belt
drafting scale
duodenoduodenostomy
fakhoury
fire-protection distance
flanged outward
flow of income
fool-hasty
Galloway dike
gauge strut
Gaulic
gilbert murrays
glass blowing machine
glycol cellulose
Hantengri Feng (Khan-Tengri, Pik)
hawklike
Hohburg
homocarpous
hybrid sterility
hydrazinophthalazines
Indigofera pseudotinctoria
ionescoes
jodelet
kepecs
kikongoes
life-expectancy
lolbertarian
luminous zone
maclean separator
make it warm for someone
measuring probe
meat weight
methylhydroxyglutaryl CoA reductase
molybdenum(iv) sulfide
non-imaging type
non-sulfur purple bacteria
Normasal
off-screen space
parauchenoglaniss
parisa
phalanger
piezotropic equation
profiterole
puppet-head phenomenon
quasi-optical frequencies
quinizarin green SS
railship
refer back
rhebosis
Rhinophaga
rosalyn
self-diagnose
sensing mechanism
SEWHO
short-time duty
site traffic
slopes test
software escrow
spider mite
Staurogyne concinnula
stotinkas
symphoricarpos orbiculatuss
television receiver
three-term control
tighina (bender)
to do what?
trick masters
Twofish
undisturbed flow
unfriendedness
unguided
unmeditated
unrancorous
velocity gate deception
wall st.s