[化] 四卤代苯

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(156) / 评论(0) 分类 Scientific American(一)月

Hard bargainers VS. soft bargainers Dialogue 1 A: We've got a problem...it looks like we'll need more spotlights on the exhibition booth. The client thinks it's too dark,and they want to add halogen lighting. We've already got 3 sets of track lighti

发表于:2018-12-31 / 阅读(111) / 评论(0) 分类 商务英语口语

Helen: Hello, this is Real English from BBC Learning English, Im Helen Zo: Hello, 我是刘佳。欢迎收听我们今天的地道英语。 Helen: In Real English, we look at words and phrases that you might not find in your dictionary. Zo : 英语和中文一样,有很多的俗

发表于:2019-01-02 / 阅读(131) / 评论(0) 分类 地道英语在线听

Robert Burns(17591796) O my luve is like a red, red rose, That's newly sprung in June; O my luve is like the melodie That's sweetly played in tune. As fair thou art, my bonie lass, So deep in luve am I; And I will luve thee still, my dear, Till a' t

发表于:2019-01-02 / 阅读(161) / 评论(0) 分类 英语诗歌

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(141) / 评论(0) 分类 医务英语

A: Are you new in town? B: Yes, I did just move in. A: How do you like it here so far? B: I think its great. A: Where did you move from? B: I was living in El Salvador. A: Why did you decide to move? B: I figured I could have a better life here. A: I

发表于:2019-01-07 / 阅读(131) / 评论(0) 分类 英语情景对话-邻居

Dan: This is 6 Minute English from BBC Learning English. I'm Dan Walker Smithand today I'm joined by Alice. Hello Alice! Alice: Hi Dan. Dan: Alice, you've got some news about a media blackout in an English town, right? Alice: That's right; a media bl

发表于:2019-01-07 / 阅读(123) / 评论(0) 分类 六分钟英语

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

Ed Sheeran,英国20岁的创作新人歌手,这首The A Team本周打入英国单曲榜第三位。Ed Sheeran的声音非常清澈好听,此前Westlife成员Mark Feehily还在Tweet上邀请Ed为westlife写歌,Ed的回复则是I might actually

发表于:2019-01-10 / 阅读(123) / 评论(0) 分类 天籁音乐

紧凑型荧光灯 Compact Fluorescent Lamp 金卤灯 metal halide/halogen lamp 溴钨灯 Bromine tungsten lamp 汞灯 mercury lamp 钠灯 Sodium lamp 卤钨灯 Halogen tungsten lamp 碘钨灯 iodine tungsten lamp 氖灯/霓虹灯 neon lamp 石英灯

发表于:2019-01-17 / 阅读(143) / 评论(0) 分类 实用英语

By Victoria Cavaliere New York 24 October 2007 New York's Metropolitan Museum of Art has opened a newly renovated, state-of-the-art education center that will allow students, scholars and the general public to study the museum's world-renown collecti

发表于:2019-01-31 / 阅读(128) / 评论(0) 分类 2007年VOA常速英语(十月)

听歌学英语:Edleweiss 音乐之声插曲 edleweiss 雪绒花(小提琴版)这样一首温馨的歌曲同样出自于美国电影《音乐之声》。它也是我对小学时音乐课最美好的回忆。 [00:02.50]EnglishExpress [00:05.95]轻松

发表于:2019-02-07 / 阅读(194) / 评论(0) 分类 听歌学英语

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(154) / 评论(0) 分类 阅读空间

WASHINGTON, Dec. 12 (Xinhua) -- After its final policy meeting of this year, the U.S. Federal Reserve on Wednesday announced to continue pumping money into the economy by buying assets and hold its short-term rate near zero until the unemployment rat

发表于:2019-02-09 / 阅读(149) / 评论(0) 分类 英语新闻

LONDON The United States has won the mens Olympic basketball gold medal at the London Games. The victory in the final over Spain did not come easy. The final on the scoreboard read USA 107, Spain 100, a seven-point victory in a game that was tightly

发表于:2019-02-09 / 阅读(258) / 评论(0) 分类 英语新闻

Mind control over the material world has long been the stuff of science fiction. Now, thanks to a chip implanted in the brain, one paralyzed American sportsman is learning how to reach out and touch once again with the help of a robotic arm powered s

发表于:2019-02-14 / 阅读(131) / 评论(0) 分类 世界各地新闻集锦

Conradin was ten years old, and the doctor had pronounced his professional opinion that the boy would not live another five years. The doctor was silky and effete, and counted for little, but his opinion was endorsed by Mrs. de Ropp, who counted for

发表于:2019-02-16 / 阅读(225) / 评论(0) 分类 英文短篇小说

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(168) / 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(126) / 评论(0) 分类 夏说英语新闻晨读

本文为大家准备了GRE词根ed词汇整理,便于考生GRE考试备考。 ed = eat 吃 441. edible〔 ed 吃,-ible 形容词后缀,可的 〕可以吃的,食用的442. edibility〔 ed 吃,-ibility 名词后缀,可性 〕可食性443.

发表于:2019-02-25 / 阅读(134) / 评论(0) 分类 GRE英语
学英语单词
a bad trip
a beef
administer an oath to sb
agathidium (agathidium) kaohsiungense
allylpalladium
animal-care
apoplectic rheumatism
arsenic intoxication
babbacombe
bank pass-book
batched jute
bilkoes
binding occurrence
birational correspondence
bonaci
brass flat wire
Carex hoozanensis
carvalho
cellpbiose
complete demineralisation plant
cut decoration
cyprodenate
decembre
deep temporal artery
dehydroiodination
dendrocygnid
deplorability
double inequality
dysrythmia
epigonichthys lucayanus
eso-ethmoiditis
extrinsic cycle
fall-back
family agamidaes
finescope
fissura sagittalis sinistra
fit to page
forthgang
fourth-highest
general statement
Guarantee of Profession for Seamen
have the preponderance over
hectometric wave
helicoidal sifting machine
high-valuation
joyne
Kamiokalite
lidochka
Linked Open Vocabularies
Local Government Commission for England
Lolium arundinaceum
lovastatins
lowrise
LP.
magnesiothermic reduction
main shaft packing
men of God
metaaluminic acid
nayikas
net profit for the current year
noise use
non-determinate
oil-feeder
olfactory cortex
oxide sediment
peak apogee
postinfection
privatizable
propeller regulating mechanism
proton-donor solute
put into someone's hand
quasi flow
Quirinopolis
reefer jacket
relentless
resin coating
rh degassing process
rubber forming
run like a lamplighter
salty fishes
schain
self-financed
septicemias
service trials
sheer line at center
side-to-side baffles
specimen of draft
steady-state condition
Stevens former Stevens
strain gauge for general prupose
tandem-generator
temoropia mayumbaensis
Termination of Salvage Operation
traffic classification
underslung crankshaft
unit automorphism
Villargordo
watch house
waving wing
welded turret
well capitalized
zanzibarica