[化] 碳酸氢锂溶液

The moon shone down on the lake like a spotlight. It was a warm summer evening, and I found the night sky, with its 1) glistening stars, relaxing to watch. Five of us were sitting on the dock, wishing

发表于:2018-11-28 / 阅读(320) / 评论(0) 分类 疯狂英语2002年

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得 10 到 30 积分的奖励 ! Thank you !

发表于:2019-01-01 / 阅读(192) / 评论(0) 分类 格列佛游记.Gulliver's.Travels

1. Most of the earth's surface is covered by water. 大部分的地球表面被水覆盖着。 2. Somebody's knocking at the door. I'll answer it. 有人在敲门,我去开。 3. The number 13 bus w

发表于:2019-01-03 / 阅读(221) / 评论(0) 分类 Modern English 洋话连篇

The International Federation of Red Cross and Red Crescent Societies warns diarrheal diseases, such as cholera, are on the rise and increasingly becoming a major cause of death throughout the world - especially in sub-Saharan Africa. The Red Cross s

发表于:2019-01-13 / 阅读(166) / 评论(0) 分类 VOA标准英语2009年(三月)

Why is it that you cant put down hydrogen gas? If you had a big balloon full of hydrogen gas, like the first gondola balloons pioneered in 18th-century France, youd find that it rises in the air quite dramatically. You know that a piece of wood will

发表于:2019-01-26 / 阅读(177) / 评论(0) 分类 英语听力文摘 English Digest

By Michael Bowman Washington 16 July 2006 Secretary of State Condoleezza Rice says Iran and Syria are fomenting conflict in the Middle East by supporting Hezbollah and other militant groups. ------- Condoleezza Rice (r) and George Bush at the G-8 su

发表于:2019-01-31 / 阅读(230) / 评论(0) 分类 2006年VOA标准英语(七月)

By Melinda Smith Washington, DC 04 January 2007 watch Meningitis in Children Meningitis can be infectious, particularly when the disease is spread among large groups of people living in crowded conditions. It is most prevalent in sub-Saharan Africa,

发表于:2019-01-31 / 阅读(219) / 评论(0) 分类 2007年VOA标准英语(一月)

Enam: Katia, what are the environmental problems in your country? Katia: Well, I can think of three problems. One is water drought. The scarcity of water. Second, we have a lot of air pollution, and third a lot of deforestation. Enam: OK, so can you

发表于:2019-02-03 / 阅读(152) / 评论(0) 分类 原版英语对话1000个

Todd: So, hello, Alexandra. Alexandra: Hi, how are you? Todd: I'm doing good. Now Alexandra, you're from Miami. Alexandra: Yes, I am. Todd: OK, so why don't you tell us about Miami. Alexandra: Born and raised in Miami, and it's very warm, very warm.

发表于:2019-02-04 / 阅读(161) / 评论(0) 分类 原版英语对话1000个

重点词汇(填空) mystery novel,float,corpse, initially,putrefaction,digestive tips: 怎样阅读才是有质量的阅读了? 边看边填空吧,重点词汇可是小编为大家认真筛选的,阅读完后,点击【查看答案】和 【查看

发表于:2019-02-16 / 阅读(136) / 评论(0) 分类 英语听力文摘 English Digest

Boiling Water Under Boiling Clouds You may be surprised to hear that its actually easier to boil water on stormy days than it is when the weather is clear and sunny. Can you guess why? The reason is that the boiling point of water changes slightly in

发表于:2019-02-24 / 阅读(151) / 评论(0) 分类 英语听力文摘 English Digest

Don: Hey, Yael, Have you heard? We've discovered two new oceans? Yael: Where? D: On Mars. Well, they aren't there any longer, but they were there a few billion years ago. Y: I thought scientists weren't sure if Mars had oceans or not. D: They weren't

发表于:2019-02-24 / 阅读(154) / 评论(0) 分类 英语听力文摘 English Digest

The Denatured Egg White 煮鸡蛋还有那么多学问哪?在煮鸡蛋过程,鸡蛋会发生哪些变化呢? 蛋白质变性(protein denaturation)是指蛋白质在某些物理和化学因素作用下其特定的空间构象被改变,从而导致

发表于:2019-02-24 / 阅读(159) / 评论(0) 分类 英语听力文摘 English Digest

Acanthostega 这种生物已经演化出前后肢,但每肢都有8趾。这种生物是从鱼类进化到两栖类的过渡产物。而且,它具有更多的鱼类特征,如有鳃、鳍和只能在水中起作用的感官。伦敦自然历史博

发表于:2019-02-24 / 阅读(161) / 评论(0) 分类 英语听力文摘 English Digest

Floating Tin Foil 锡纸为一种涂上或贴以像银的膜状金属纸,多为银白色,实际上是铝箔。铝箔纸(Aluminium foil),亦作铝箔,在香港称之为锡纸,是一种用压平了的金属铝制造的工具,主要用于厨

发表于:2019-02-24 / 阅读(154) / 评论(0) 分类 英语听力文摘 English Digest

How Clouds Float 形成云彩的暖湿上升气流使得云彩能够漂浮在空中。一片普通云彩的含水量约为200只成年公象的体重之和。但云彩中的水分被分解为细微的水滴和冰晶,因而不会倾盆而下。即使是

发表于:2019-02-24 / 阅读(172) / 评论(0) 分类 英语听力文摘 English Digest

Airplane Contrails Have you ever seen a perfectly cloudless sky? Cloudlessthat isexcept for two or three long white lines smeared across the perfect blue sky by airplanes like smudges on a pane of glass. Why do airplanes sometimes leave contrails beh

发表于:2019-03-09 / 阅读(214) / 评论(0) 分类 英语听力文摘 English Digest

What Is Fire? 火是物质燃烧过程中散发出光和热的现象,是能量释放的一种方式。火焰分为焰心、中焰和外焰,温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存,缺一

发表于:2019-03-09 / 阅读(354) / 评论(0) 分类 英语听力文摘 English Digest

Summer Breeze, Makes Me Feel Fine 风是大家最熟悉的自然现象,要了解风的形成必须了解包围着地球的大气的运动。大气的流动也像水流一样是从压力高处往压力低处流。太阳能正是形成大气压差的原

发表于:2019-03-09 / 阅读(298) / 评论(0) 分类 英语听力文摘 English Digest

Acid Water Yal: What are you doing outside, Don? It's about to rain. Don: I'm setting out bottles. Y: I can see that. But why? D: For my new business venture. Bottled rainwater! Y: As in living plastic bottles out in the rain and then selling them as

发表于:2019-03-09 / 阅读(398) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
accident at sea
alternaria sesamicola zimm.
Alzano
anticline tunnel
arts.
Athyrium distentifolium
authorized senior member
back end generator language
bandolero
bats away
be connected to
bimotor aircraft
blodynamic
blood nylon filter
Borrelia macrodenticum
buquoy
caregiving
cartonnage
Cher, Dép.du
childbirth
classical topology
co-dependence
cochain homotopic
color outside the lines
comminuting
congars
corrosion resister
crypto-fascists
data sailing
dimension of complex
dishonored check
dismalest
Dods
enabling technologies
exposures
external scaffolding
feigenbaum
Forgot password
gahiz
genomic plasticity
Gossa
high order fission product
high pressure sluice valve
imaginaries space
intuitive feeling
jao t'ang
line pencil
MacTCP
makes option
maryln
most-improved
motor tank trunk
multiple element control
myofibrosis
nerd poled
noran
objet de vertu
on a string
opopaea sauteri
optical asymmetry
pivoted armature
polarographic scanner
poroscopy
public-security
push to type operation
quinceys
quite another thing
rachette
Ranunculus acris L.
request segment
retinal scannings
sampling risk
sargassum amabile
shao ch'ang
simple entry
sound perception
spread of separation
standard impedance
statement of final accounts
statistical decision theory
step wise
strictly dense
subsea contractor
Sunday houses
syrma
system programs
T86
temperature vibration
the exclusive right
theory of beta decay
third partier
track switch
triple modulation telemetering system
Tsukui
vat-dye printing
velky
vertical internal combustion engine
video gamers
vitamine T
weight replacing system
wire wheel
Zisium