【化学】有机四价硫化合物,锍化物[亦作 sulphonium salt]

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(155) / 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(67) / 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(102) / 评论(0) 分类 英语语法 Grammar Girl

[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(137) / 评论(0) 分类 北师大版高中英语模块8(选修)

1. The White House says sanctions may be coming against Syria with the US condemning violent crackdown on anti-government protesters there. More than 300 people have been killed. 2. Mississippi Governor Haley Barbour says he is not running for presid

发表于:2018-12-15 / 阅读(114) / 评论(0) 分类 美联社新闻一分钟2011(四月)

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(189) / 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(57) / 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(141) / 评论(0) 分类 四六级词汇与结构练习

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(129) / 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(98) / 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(129) / 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(56) / 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(146) / 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(82) / 评论(0) 分类 小龟乐游记英语短文

Grammar Girl here. Today's topic is hyphens. On Monday afternoon Pat was watching the cable channel CNBC and called me over to the TV because the hosts were talking about hyphens. Yup, in the middle of a segment on the economy, they started talking a

发表于:2019-01-30 / 阅读(162) / 评论(0) 分类 英语语法 Grammar Girl

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(132) / 评论(0) 分类 货币英语

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(85) / 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(84) / 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(86) / 评论(0) 分类 英语新闻

Rebel fighters have seized Moammar Gadhafi's compound in the capital, Tripoli, and are celebrating what they consider a major victory over the Libyan leader and his loyalist troops. The rebel fighters fought their way into Gadhafi's Bab al-Aziziya co

发表于:2019-02-18 / 阅读(52) / 评论(0) 分类 英语新闻
学英语单词
a likely story
active gate
agate morear
Ahangaran
antagonist titration
anti-aircraft gun
Bacillus erythrogenes
backward heart failure
bandelier
betulaceous
biduotertian
biphenylylpenicillin
biserial correlations
bookstaber
BPBG
Brachyspira
brush sth off
bullet or shell hole
Cahora Bassa, Barragem de
camellia seed
castrater
catapicephala ruficornis
centrifugal elutriation
cinctiscala eximium
crossing off
crunkle
cystido-
Dayan Nuur
dezincing furnace
dielectric heat
dinailan
do the full monty
double-pass interferometer
double-precision floating point
duck plague virus
easement-curve
fellow-passengers
fidlam ben
flapping tremor
fully transaction information system
Gabor's expansion theorem
Gulf of Aden
Hafursfell
Hausruck
heschl gyrus
high-density baling
holshouser
hoodlike
inexpressiveness
inner quantum number
ironing with Chinese medicine
jurisconsults
Kendawangan, Sungai
korou
lamp bank
lectinlike
Levonorgestral
light valve display
mad as hops
main types
manist
median lower lip cleft
membrano-proliferative glomerulonephritis
milk separation
montmorillonite dehydration
moura
newspaper stacker
nonedited
north atlantic councils
occupation statute
oil-state
oily wastewater treatment
optical font
overreads
pallet type conveyor
paraffin bowl
pharyngeal tonsil
pipeline flexible joint
polyporenic acid
prize-list
railway traction power
RdAc
Redondo, Beach
relative leucocytosis
reservor
Santo Hipólito
scale pit
side seam can
soeffing
South Coventry
special teams
steel framed building
successive-fracture treatment
talker identifications
ten-code
Tonometry-Tonography
trans-quantitative method
unshakingly
vapor phase epitaxy (vep)
wohler
yours'd
zone symbol