[分化] 自动滴定仪
[分化] 自动滴定器

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. This will just take a minute. Youve probably chased a fly or two around the house this summer. And, chances are, it took a few swings before you brought down the buzzing nuisance.

发表于:2018-12-02 / 阅读(132) / 评论(0) 分类 Scientific American(八)月

This is the VOA Special English Health Report. Every few years, two groups do a study of how many Americans wash their hands after using the toilet. These groups are the American Society for Microbiology and the American Cleaning Institute, formerly

发表于:2018-12-07 / 阅读(99) / 评论(0) 分类 2010年VOA慢速英语(九)月

[全屏观看] 点击右键- 另存为 可保存这个Flash影片

发表于:2018-12-12 / 阅读(153) / 评论(0) 分类 北美小学生英语一年级教材(牛津英语教材)

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:2018-12-18 / 阅读(126) / 评论(0) 分类 英语口语天天练-大米

World Hepatitis Day is observed on May the 19th. It aims to increase awareness worldwide of the diseases hepatitis B and hepatitis C. Its hope is to encourage the prevention and diagnosis of these two diseases, and increase the number of people who r

发表于:2018-12-29 / 阅读(102) / 评论(0) 分类 英语课程学习计划和讲义

今天我们要学的词是tit-for-tat. Tit-for-tat意思是针锋相对,以牙还牙。Islamist militants' attacks and tit-for-tat violence between rival ethnic groups have cast doubt on Mali's upcoming elections. 伊斯兰国激进分子的袭击和

发表于:2018-12-30 / 阅读(86) / 评论(0) 分类 英语单词荟萃

Youve given some thought to oxygen, carbon, uranium. But youve probably never mused about the element ytterbium, symbol Yb. A new study by scientists at the National Institute of Standards and Technology, or NIST, says that ytterbium could find a rol

发表于:2019-01-08 / 阅读(107) / 评论(0) 分类 Scientific American(八)月

By Steve Herman New Delhi 26 May 2007 The latest in a string of violent attacks blamed on separatists in the northeastern Indian state of Assam has left seven people dead and injured about 30 others. VOA's Steve Herman reports from New Delhi that the

发表于:2019-01-13 / 阅读(121) / 评论(0) 分类 2007年VOA标准英语(五月)

The U.S. Special Inspector General for Iraq Reconstruction has criticized the State Department for its management of nearly $3 billion in contracts and grants in Iraq. In two reports, auditors cited weak and ineffective State Department oversight of

发表于:2019-01-13 / 阅读(174) / 评论(0) 分类 VOA标准英语2010年(一月)

The US government is considering, for the first time, the approval of a genetically-modified animal for human consumption. The animal being considered is salmon, but approval could open the door for other animals as well. Those who favor the move say

发表于:2019-01-13 / 阅读(149) / 评论(0) 分类 VOA标准英语2010年(七)月

Stomach cancer is one of the deadliest diseases, and ranks second among cancers worldwide with at least 800,000 deaths yearly. But in the United States, the number of cases has been declining, except for among one group of Americans. Glenda Reimer, h

发表于:2019-01-13 / 阅读(117) / 评论(0) 分类 VOA标准英语2010年(五)月

At Scripps Research Institute in Jupiter, Florida, scientists are working to find clues about how the human brain processes memories. Their laboratory test animal is not a chimp or a dog or a rat animals that we know can remember things it is the com

发表于:2019-01-13 / 阅读(146) / 评论(0) 分类 VOA标准英语2010年(三月)

Lesson 25 Rat 1.Rats! 2.I smell a rat. 3.You look like a drowned rat. 4.You dirty rat! 5.I was just ratting around. 6.I don't want to die like a rat. 7.Hey,pal,you see rats. 8.You must be in the rats.

发表于:2019-01-14 / 阅读(141) / 评论(0) 分类 辛沛沛NO-BOOK 辛沛沛口语提高版

By Melinda Smith Washington, DC 15 February 2008 Obesity is becoming a worldwide problem, even in developing countries. But diet drinks and food prepared with sugar substitutes do not seem to help curb people's appetites. Now a new study may provide

发表于:2019-01-19 / 阅读(118) / 评论(0) 分类 VOA常速英语2008年(二月)

This is the VOA Special English Development Report. Health experts predict that soon, more people will die from cancer than from AIDS, tuberculosis and malaria combined. They expect that by two thousand ten, cancer will become the world's leading cau

发表于:2019-01-20 / 阅读(110) / 评论(0) 分类 2010年慢速英语(三)月

Tit for Tat针锋相对An American lady traveling in England some years ago, got into an compartment of a smoking carriage where an Englishman was smoking a pipe. For a short time she sat quietly expecting that the Englishman would stop smoking. But

发表于:2019-01-28 / 阅读(130) / 评论(0) 分类 英语小达人

72 约翰斯·霍普金斯疟疾协会 DATE=7-19-01 TITLE=SCIENCE REPORT - Johns Hopkins Malaria Institute BYLINE=Jill Moss (Start at 01'0

发表于:2019-01-30 / 阅读(156) / 评论(0) 分类 科技之光

今天我们要学的词是multitasking。 Multitasking, 原本是计算机术语,指多重任务同时处理,现在已经被沿用到日常生活中,指同时干很多事情。现在的美国中学生,一边写作业,一边听音乐,还要

发表于:2019-02-02 / 阅读(87) / 评论(0) 分类 英语单词荟萃

Offering Substitute 提供代用品 Specimen Letters1. Offering Rayon in Place of Watered Silk提供人造丝代替水洗丝Dear Sirs,Thank you for your fax of yesterday (April 3) with your order No.456 for 5,000 metres of 100cm wide watered silk. We

发表于:2019-02-05 / 阅读(163) / 评论(0) 分类 实用英语

Idiom: rat race 激烈的竞争 Hit the book: productivity 生产力 recruiment 招聘 principal 主要的 inspire 激发灵感 sustainable 可持续性的 eco-altruism 环境利己主义 quick fix solution 简单有效的方法 biophilic 热爱自然的

发表于:2019-02-16 / 阅读(141) / 评论(0) 分类 趣味青春英语
学英语单词
Aberdeen Cutlet
accident-prone personality
amebicide
Ames room
assign ... to
Aston Clinton
aztecs
baseplate
bidales
Bërëlëkh
cerium oxide
claim to dividend
clap on sail s
cleaning efficiency
communicate with
connecting nipple
contribute one's mite
decidua serotina
Demoncrats
dilution heat
discrasite(discrase)
double berth cabin
eccentric rotary valve
enable ... to do
exhaust-sound
extension testing
family trichechidaes
glutinous rice dumpling
gum guaiacum
heat-retaining mass
hexavalent
Hill plotting
indexed sequential processor program
interferometer polar diagram
internal combustion engine repair ship
international system of unitss
intruder alarm
ioglucol
isobaricity
jny
Keklau
Kiplingese
KPW
lewatit M2
Liberty ship
Lissajou
load-line displacement
macaroons
mechanical purchase
mediastinal hematoma
method in one's madness
Muirdrum
myenteric
Naticopsis
neighborship
neuro-surgery
Ngwempisi
noncoherent radar
numbskulled
oil resistant rubber
omphalotukaia nobilis
ordered pairs
pagoda shaped jar
partial trisomy
pionies
placidu
poison-tree
Pulsatilla sinensis Reg.
pure act
range of deflection
reverse gate current
saddlelike
sdy (sandy)
Seifert's reaction
serviceage
sluicing pond
sorting depot
speech noise ratio
storma
subdominant harmony
surrogatively
tariff obstacle
tectonic outlier
telegraph pole
thermoplastics type
tidal epock
time-invariant linear filter
to yield to...
top cager
transceiver
trip period
Tuan Giao
tuned-plate oscillator
tunneltron
Two can play at that game.
Unagi
unsnubbed
v.i.g
valandry
woaded
Yauyos
zero-point energy