[医] 菱形磷, 金属磷

40.Development and the Environment With the development of industry,people are faced with the problem of a worsening environment.Fish are disappearing in many rivers and lots of green land is changing into desert. What are the causes of this?Firstly,

发表于:2018-11-28 / 阅读(203) / 评论(0) 分类 疯狂英语易背作文

发表于:2018-11-29 / 阅读(207) / 评论(0) 分类 英语歌曲第六辑

Rho Ophiuchi dark cloud is one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth. The infrared astronomical satellite, now celebra

发表于:2018-12-05 / 阅读(153) / 评论(0) 分类 国家地理2008年

The little splints of wood which we call matches are made out of deal or pine wood which has been soaked in melted paraffin wax to make it burn more easily. 这种被我们称之为火柴的薄木片由欧洲赤松(松树)制成, 在液体的石蜡

发表于:2018-12-18 / 阅读(96) / 评论(0) 分类 英国学生科学读本

Have you ever had a problem getting a match to light? If so, you might be using the wrong type of match. There are actually two different types of matches: safety matches and strike-anywhere matches. 以前你点燃火柴时有没有点不着的时候呢

发表于:2018-12-18 / 阅读(89) / 评论(0) 分类 2018年NPR美国国家公共电台2月

史诗巨作《澳大利亚》由妮可基德曼和休杰克曼主演,讲述了漫漫北澳大利亚大陆上一个结合了浪漫、戏剧、冒险与奇观的壮丽史诗故事。影片描画出澳大利亚这个遥远且充满异国风情的地方

发表于:2019-01-03 / 阅读(144) / 评论(0) 分类 电影歌曲

This is Scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? Life on earth requires six basic ingredientscarbon, hydrogen, nitrogen, oxygen, sulfur and phosphorus. Those six elements are the building blocks for DNA and R

发表于:2019-01-08 / 阅读(125) / 评论(0) 分类 Scientific American(十二)月

歌词: You say your on a diet, 你说你在节食 cause the things that don't work out right, 因为事情总不会成功 But you don't even try, 但是你甚至都不去尝试 though neither do i 尽管我也不 And neither do my friends, 我的朋友们也不 though some of them prete

发表于:2019-01-09 / 阅读(218) / 评论(0) 分类 音乐咖啡厅

This is the VOA Special English Agriculture Report. Hogs at an Ohio farm Research shows that waste from pigs that are fed a special kind of corn may help a farmer's crops. And it also may help the environment. Any farmer who raises swine knows that

发表于:2019-01-11 / 阅读(152) / 评论(0) 分类 VOA慢速英语2008年(八)月

By Peter Fedynsky Moscow 18 July 2007 Officials in Ukraine are assessing the damage of a train crash in western Ukraine that sent huge clouds of burning phosphorus billowing into the air. The accident, which took place Monday, is raising health conce

发表于:2019-01-12 / 阅读(132) / 评论(0) 分类 2007年VOA标准英语(七月)

The Ivory Coast ambassador to the United Nations is calling for more international pressure to make incumbent President Laurent Gbagbo cede power. The Ivorian diplomat warned the situation could turn more violent if outside help is insufficient to fo

发表于:2019-01-14 / 阅读(156) / 评论(0) 分类 VOA标准英语2011年(二月)

GUY RAZ, HOST: Have you ever experienced hatred or - I mean, have you ever - I don't know. Has anybody ever said something to you because of who you are, because of your faith that has just been so incredibly hurtful? DALIA MOGAHED: Yes (laughter), a

发表于:2019-01-17 / 阅读(152) / 评论(0) 分类 2017年NPR美国国家公共电台4月

MARY LOUISE KELLY, HOST: Summertime brings algae blooms to many parts of the country - those mats of bright green organisms that can blanket waterways. In places like Florida's Lake Okeechobee, the blooms hurt tourism. They kill fish. They threaten w

发表于:2019-01-17 / 阅读(119) / 评论(0) 分类 2018年NPR美国国家公共电台7月

The commercial potential for the stuffwhich soon became known as phosphorus, from Greek and Latin roots meaning light bearingwas not lost on eager businesspeople, but the difficulties of manufacture made it too costly to exploit. An ounce of phosphor

发表于:2019-01-29 / 阅读(108) / 评论(0) 分类 万物简史

AGRICULTURE REPORT -April 2, 2002: Quorn By George Grow This is the VOA Special English AGRICULTURE REPORT. Some food stores in the United States have begun to sell a product called Quorn (pronounced

发表于:2019-01-30 / 阅读(114) / 评论(0) 分类 农业与发展

今天我们要学的词是robocall。 Robocall指的是由计算机系统自动拨号,播放事先录制的电话留言的宣传电话。Robocall是产品促销和政治竞选的常用手段。A GOP group launched its robocall campaign against Sen

发表于:2019-02-04 / 阅读(173) / 评论(0) 分类 英语每日一词

Pollster Dalia Mogahed 分享了一些关于埃及人对于阿拉伯之春的态度的令人意外的数据主要集中于女性在导致变革中起到的角色。

发表于:2019-02-05 / 阅读(205) / 评论(0) 分类 TED公开课:告女性说

Matches Striking matches, on this Moment of Science. Have you ever had a problem getting a match to light? If so, you might be using the wrong type of match. There are actually two different types of matches: safety matches and strike-anywhere matche

发表于:2019-02-26 / 阅读(113) / 评论(0) 分类 英语听力文摘 English Digest

Jo: This is Real English from BBC Learning English. Im Jo. Jean: And Im Jean. Jo: Today were going to look at words and phrases that have recently become part of the English language. Jean: 在我们的《地道英语》节目当中,我们会带领大家一起来学习和熟

发表于:2019-02-26 / 阅读(190) / 评论(0) 分类 地道英语在线听

Transcript for Reference Only --chunshan The infrared astronomical satellite, now celebrating its 25th anniversary, gave us the first all sky view of our dusty infrared universe. Floating above the galactic center is the Rho Ophiuchi Cloud, about 400

发表于:2019-02-26 / 阅读(223) / 评论(0) 分类 自然百科2008年
学英语单词
20s
abolitionist
acquired keratoderma
actinographs
anus disease
asset deflation
automatic ringing
automatic volume expander
biramous appendage
Bnms's glucose medium
boldface attribute
calling by
central computer input/out-put
christen
colummae carneae
combined closure method
complete tree
comprende
Comte de Rochambeau
conkerberries
constructedness
Dennis Potter
depolarizing electrode
dihydropyrane
discrete normal distribution
dismountable device
dual temperature exchange
dynacire
echinococciasis of liver
embourgeoisiement
Emmaste
for a moment
Funaydiq
Garnotia
gastronom
geo2-sio2 glasses
handle with care
Hardgrass
hazard reducing device
heel push fit
hexagonal pyramid of third order
hide options
hydraulic hitch system with separated units
immature sediment
LDT
looked
maho
main drive gear bearing cap
maintenance directory
mean solar days
Mercator, Gerhardus
Mission City
Mlicrococcus minuta
munida psamathe
musculoskeletal
notification on formal insufficiencies
Novobirilyussy
officerial
official short term credit
ooxanthine
Parasalicil
percent of idle time to utilization of time
pheniramine maleate
phytotrone
pipeline module
polar desert
principal tensile stress
process for separation of C4 by formation of MTBE
product-line profit and loss statement
progenitrices
ptilosis
pyrvinium pamoate
racquet
release-free relay
rhizoma serpentariae
roda
roentgenoscopy
salicyloacetylsalicylic acid
semiconductor filament
set-up scale instrument
sexism
single-sex college
SMA-12
sports-psychology
stand by you
subepithelium
summersweets
syncronising
Tautogolabrus
tetramethyl-ethylene
thermal sensitive effect
timelikeness
Tob-adonijah
tomog
track jack
triquetrals
unsuffocated
variable-mu pressure transducer
Vienne River
waterworks operation
welding station
zone of mild pollution