胞壁物质

[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:03.69]1997 Passage3 [00:07.32]Technically, any substance other than food [00:10.48]that alters our bodily or mental functioning is a drug. [00:15.31]Many people mistakenly believe the term dru

发表于:2018-12-01 / 阅读(232) / 评论(0) 分类 历年考研英语阅读理解

Dana joins us now live from Washington. So, Dana, you know, what is your take here? Is this typical political theater of someone's who's not going to be re-elected? Or is it a true sign of growing rage over the fact that we're spending money that we

发表于:2018-12-02 / 阅读(229) / 评论(0) 分类 CNN2010年(三)月

[0:0]strip structure studio脱光衣服,剥去 结构,构造 画室,摄影棚 [0:31.9039]stuff style submerge submit原料,材料 风格,文体,样式 潜入水中,淹没 屈服,听从 [1:16.6271]subsequent substance substantial substitute随后的,后来的 物质,实质,要旨 可观

发表于:2018-12-05 / 阅读(219) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

Andy wasn‘t that way, but I was. The idea of seeing the Pacific sounded good, but I was afraid that actually being there would scare me to death - the bigness of it Anyhow, the day of that conversat

发表于:2018-12-05 / 阅读(309) / 评论(0) 分类 有声英语文学名著

07 牙病的预防与治疗 DATE=2-27-01 TITLE=SCIENCE IN THE NEWS #2113 - (1)Dental Health BYLINE=Nancy Steinbach VOICE ONE: This is Sarah Long. VOICE TWO: And this is Bob Doughty with Science in the

发表于:2018-12-07 / 阅读(195) / 评论(0) 分类 科技之光

[00:06.48]Lack of Vitamin A is the leading cause of blindness among children in deveoping countries. [00:14.55]These children do not get enough Vitamin A in the food they eat. [00:21.11]In Africa,more than 3,000,000 children suffer from blindness or

发表于:2018-12-26 / 阅读(247) / 评论(0) 分类 美国英语听力80篇

SCIENCE IN THE NEWS - Food for Thought: How Vitamins (Once Spelled 'Vitamines') Are Important to HealthBy Nancy Steinbach Broadcast: Mon, 19 Jun 2006 16:00:00 UTC (MUSIC) VOICE ONE: This is SCIENCE IN

发表于:2019-01-02 / 阅读(162) / 评论(0) 分类 2006年慢速英语(六)月

61 不为人们重视的光污染 ENVIRONMENT REPORT - August 31, 2001: Light PollutionBy Mario Ritter (Start at 1'01

发表于:2019-01-02 / 阅读(258) / 评论(0) 分类 自然探索

在这次节目里我们要给大家介绍两个都是以wall这个字为主的习惯用语。Wall这个字是什么意思呢?Wall就是一堵墙的墙。有不少习惯用语都跟wall这个字有关

发表于:2019-01-11 / 阅读(320) / 评论(0) 分类 美国习惯用语

What's the Matter? Now, the VOA Learning English program, Words and Their Stories. The English language has a number of hard-working words. People use these words in many different ways and in many different expressions. One such example is the word

发表于:2019-01-12 / 阅读(215) / 评论(0) 分类 2014年VOA慢速英语(十一)月

We have a large demand for the supply of 50,000 meters brown serge, whose sample is enclosed to show you the shade and quality we require. Please send your samples corresponding to our samples with the most reasonable price C.I.F. Singapore if you ca

发表于:2019-01-21 / 阅读(173) / 评论(0) 分类 天天商务口语

7 Elemental Matters 7 基本物质 Chemistry as an earnest and respectable science is often said to date from 1661, when Robert Boyle of Oxford published The Sceptical Chymistthe first work to distinguish between chemists and alchemistsbut it was a s

发表于:2019-01-29 / 阅读(185) / 评论(0) 分类 万物简史

> 79 如何提取骆驼奶制作乳酪 DATE=8-7-01 TITLE=AGRICULTURE REPORT - Cheese from Camels BYLINE=George Grow (Start at 59

发表于:2019-01-30 / 阅读(231) / 评论(0) 分类 科技之光

81 一年轻妇女死于药品试验 DATE=8-11-01 TITLE=IN THE NEWS #493 - Testing of Drugs BYLINE=Nancy Steinbach (Start at 1'05

发表于:2019-01-30 / 阅读(235) / 评论(0) 分类 科技之光

21 只有部分椰菜可以预防癌症 DATE=3-15-01 TITLE=SCIENCE REPORT - New Broccoli Study BYLINE=George Grow (Start at 58

发表于:2019-01-30 / 阅读(206) / 评论(0) 分类 科技之光

KINGSTON, Nov. 17 (Xinhua) -- Jamaican sprinter Steve Mullings might be banned for life from athletics after found guilty of using the banned substance furosemide Thursday by a three-man disciplinary panel. Mullings' urine sample was found positive o

发表于:2019-02-08 / 阅读(218) / 评论(0) 分类 英语新闻

This is SCIENCE IN THE NEWS, in VOA Special English. Im Bob Doughty. And Im Faith Lapidus. This week, we tell about vitamins. Many jobs must be done with two people. One person takes the lead. The other helps. It is this cooperation that brings succe

发表于:2019-02-16 / 阅读(168) / 评论(0) 分类 英语语言学习

It was interesting as well while we were out on the farm, there were thousands of trees I think out on the farm, so we saw lots of different insects and little animals as well. The most exciting thing I saw was a red back spider, because the red back

发表于:2019-02-16 / 阅读(144) / 评论(0) 分类 英语趣味课堂

18 The Bounding Main 第十八章 浩瀚的海洋 Imagine trying to live in a world dominated by dihydrogen oxide, 请你想像一下,你能不能生活在一个由一氧化二氢主宰的世界里。 a compound that has no taste or smell and is so

发表于:2019-02-25 / 阅读(255) / 评论(0) 分类 万物简史

Antibiotics, as the name implies, work against life, or more specifically against living cells. Since our bodies are also made up of living cells, the antibiotics have to distinguish between the cells in our bodies and the cells of the bacteria causi

发表于:2019-03-06 / 阅读(217) / 评论(0) 分类 英语时差8,16
学英语单词
a known quantity
affective commitment
asymmetric polarization
automatic casting machine
bajo boquete
beams of light
biotic community
boat paddle
break-before-make contacts
calophyllus
car design
carver,Raymond
charge exchange potential
closed height
coal coking
columned
constructor
cooking-pots
correlation correspondence
cueings
deca-kelvin
deeda
depth adjusting screw
Dharoor, Tog
diethylmalonate
downeys
dregbaly
dynamic arc
elevation datum
embracelet
Endichnia
engine noise
fine system
finite element models
Fludara
foresnatch
foundation effect
genus Coriandrum
gleamy
GM_luck-and-lucky
gold (au)
golden rice
gravitational redshift
grounded-gate amplifier
hainanensis
half tracks
hydrobromidr
incombines
inelastic optical scattering
jointdynamometer
jolt squeeze rotalift moulding machine
labia (sing.labium)
long-leaved
Macchiavello's staining
malfunction routine
match game
micro photographic
mischievousness
monterey peninsula
narrow gage railway
neck-bone
new town
obliqueness
oculiferous
of no fixed residence
operating time ratio
optical character recognition-b
pairs of tongs
persistent acantholytic dermatosis
plus strain
pre-selection
premarins
pressure bleeder
processor free
programmed input/output channel
Promote rational flow of property right
prosthetic vessel replacement
pupinid
range the cable
rotary rheometer
sampoerna
sandlappers
sequence of functions
silico-extraction
soletary
sorting network
Steinborn
tarkowskis
templet ratiograph
tidewaters
tread warily
tusk and tenon joint
typhoid pellagra
unfaceted
United States Maritime Service
unlimited flexibility
upper alarm limit
wahmbulance
wash water channel
whale fishery
Wilberforce University
witeczeks