[网络] 四羟基葸醌;四羟基蒽醌;醌茜素

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster -- English teacher Lida Baker joins us from Los Angeles to talk about phrasal verbs. The first word is a verb. The second word, sometimes even a third, is usually a preposition. Ph

发表于:2018-12-04 / 阅读(139) / 评论(0) 分类 词汇大师(Wordmaster)

The Ant and the Dove An ant went to the bank of a river to quench its thirst, and being carried away by the rush of the stream, was on the point of drowning. A Dove sitting on a tree overhanging the w

发表于:2018-12-05 / 阅读(179) / 评论(0) 分类 创世记

The Ant and the Grasshopper In a field one summer's day a Grasshopper was hopping about, chirping and singing to its heart's content. An Ant passed by, bearing along with great toil an ear of corn he

发表于:2018-12-05 / 阅读(210) / 评论(0) 分类 创世记

心灵歌汤 Tranquility

发表于:2018-12-06 / 阅读(188) / 评论(0) 分类 心灵歌汤

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(187) / 评论(0) 分类 Scientific American(一)月

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster -- English teacher Lida Baker joins us from Los Angeles to talk about phrasal verbs. RS: The first word is a verb. The second word, sometimes even a third, is usually a preposition

发表于:2018-12-30 / 阅读(156) / 评论(0) 分类 词汇大师(Wordmaster)

Grammar Girl here. Today, guest-writer Bonnie Trenga helps us understand modifiers that come at the beginning of a sentence. Bonnie says, As a guest-writer, I plan to talk about two kinds of troublesome modifiers that begin a sentence. Like many of y

发表于:2019-01-02 / 阅读(170) / 评论(0) 分类 英语语法 Grammar Girl

Grammar Girl here. Listen up, everyone! Todays topic is phrasal verbs, as in to listen up. And now, guest-writer Bonnie Trenga writes, a listener, Paulino from Minneapolis, would like to know what phrasal verbs are and why they are called that. Phras

发表于:2019-01-02 / 阅读(198) / 评论(0) 分类 英语语法 Grammar Girl

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(158) / 评论(0) 分类 医务英语

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(148) / 评论(0) 分类 医务英语

After you have greeted your guests, you will begin to go through the main body of your presentation. It's very useful to have some visual aids - some slides, pictures or graphs that help explain what you are saying. Sometimes they can also help to k

发表于:2019-01-07 / 阅读(432) / 评论(0) 分类 英语讨论

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(184) / 评论(0) 分类 VOA标准英语2012年(三月)

An ant once leaned too far over the edge of a fountain and fell in-to the water.A dove was watching from a tree nearby.She saw that the ant could not swim so she plucked off a leaf and threw it down to him.He managed to scramble onto it and in

发表于:2019-01-26 / 阅读(215) / 评论(0) 分类 趣味英语

One cold,frosty day in the middle of winter a colony of ants was busy drying out some grains of corn which had grown damp during the wet autumn weather.A grasshopper,half dead with cold and hunger,came up to one of the ants.Please give me a

发表于:2019-01-26 / 阅读(249) / 评论(0) 分类 趣味英语

By Cynthia Kirk ENVIRONMENT REPORT -May 31, 2002: Coqui Frogs Invade Hawaii This is the VOA Special English ENVIRONMENT REPORT. Experts say the American state of Hawaii has been invaded by a small fro

发表于:2019-01-28 / 阅读(184) / 评论(0) 分类 健康与环境

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(141) / 评论(0) 分类 英语新闻

Zahra' Langhi 曾是利比亚愤怒日运动的一员。愤怒日运动有助于推翻卡扎菲专制政府,然而利比亚之后又该何去何从呢?在利比亚的第一次大选中,人们尝试创新了候选人名单交叉式候选人名单,

发表于:2019-02-05 / 阅读(156) / 评论(0) 分类 TED公开课:世界权势大转移

An ant and a fly were contending heatedly who was of greater importance.The fly was the first to begin:Can you possibly compare with my endowments?When a sacrifice is made,I am the first to taste the entrails that belong to the Gods.I pass

发表于:2019-02-06 / 阅读(242) / 评论(0) 分类 趣味英语

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(194) / 评论(0) 分类 万物简史

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发表于:2019-03-02 / 阅读(222) / 评论(0) 分类 加州英语分级G1
学英语单词
accumul
affiliate marketing
Androsace mollis
apex patell?
Atrato, R.
barring of outgoing international calls
base color
bebinca
behavio(u)r at low temperature
bending moment curve
botija
brugh
calvocoressi
Catherine de Medicis
celibataire
chlorophane
concrete hatch door
confluent shock wave
Cortic
coumarinic lactone
dc beta
digital voltage encoder
double private bank
Dumfries and Galloway Region
electronic computer and stored program automatic drafter
exposed wire
extract product
feed a cold, starve a fever
field-discharge resistance
forward by
fraction composition
fully formed character
glenn curtisses
haemolymph gland
hand glassing
hello stranger
HP Quality Center
imprivacy
in a sorry pickle
in soundings
index of basic contagion
ingealable
kinds of bug
law of succession
lebrecht
Ledbury Shales
legal charges
libite
longirostrum delicatissimus
mail-order buying
Markscheidewesen
martialled
meal-times
megisthanids
metallurgical engineers
minimal condition
Mogila
monoacid base
musculi levator ani
neuronal shrinkage
Niederlangen
nitro-gelatin
nonblocking network
nucleus of abducent nerve
oil galley
parallelogeotropism
pastoral letter
PC material
penetration color picture tube
performance text
piriformis muscle
plus plush
preparing cash budget
primary packaging
push polled
raster scan display
raylessness
residual matrix
self-presentations
sexfoil
short-grass
shoshana
simring
Sindang
sleeping suit
Sorbarin
space of planes
squama temporalis
Stafford knot
staggered breathing
Sulcus ethmoidalis
temporary earth
timing switch
trough gutter
true branching
turbulent current
unauthorized growth
vendibler
water horizon
whip-hand
wikmanson
wire mill