单词:nonrandom comparison group method
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Course #1 LESSON 1: THE MUSIC OF AMERICAN SPEECH Dr.David Alan Stern IN THIS LESSON THE TAPE TEACHES YOU THE INTONATION (PITCH CHANGE) PATHERN WHICH IS CHARACTERISTIC OF WELL SPOKEN, STANDARD AMERICAN ENGLISH When it is spoken well, American speech h
A-B-C METHOD OF MANAGING ATTITUDES As an airport skycap checked through a customer at curbside, he accidentally knocked over the man's luggage. He quickly collected the fallen bags and apologized for the mishap. Unappeased, the traveler burst into a
Cooperative Learning May Change Your Mind About Group Work Two heads are better than one. Or so the expression goes. It means that two people working together have a better chance of solving a problem than one person alone. But not everyone likes wor
我上个月坐火车到纽约去看朋友,上车后刚要坐下,旁边座位上的女乘客就开始很大声的自言自语,看上去精神好像不太正常,吓得我只好在过道对面远远地坐下。 后来我注意到,每次有人要
Its time to go again to the A Moment of Science mailbag. A listener writes: 又到阅读《科学一刻》栏目来信的时间了。其中一个听众来信说: Dear A Moment of Science, 亲爱的《科学一刻》栏目组, Ive heard that ownin
Exactly 30 minutes into the problem-solving the researchers interrupted each group 在他们开始解决问题30分钟时 研究人员们会打断各组 They entered the room bearing a plate of cookies. Four cookies 他们会拿着一盘饼干进入房
The Power Of Cute Its time to go again to the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive heard that owning a dog or cat can be a good way to deal with stress and ward off depression. So I was wonderingis it interact
Books and Arts;New film 文艺;新片上映 Method in the madness 疯狂中的理智 A searching look at what caused the split between Freud and Jung 深度挖掘:弗洛伊德、荣格决裂的原因 Psychoanalysis, as practised by Carl Jung and
The president of the European Commission appealed for cooperation between the European Union and the United States. Here is what Jean-Paul Juncker said to U.S. President Donald Trump during their talks in Washington, DC: We are close partners allies,
Diseases can spread quickly. Someone with a cold infects a few casual contacts, who in turn infect others. Ideas can also spread that way, along so-called random networks. But Damon Centola at MIT says that ideas and beliefs spread faster and more ef
By Nancy Steinbach Broadcast: July 9, 2003 This is Steve Ember with the VOA Special English Health Report. An American study has shown mixed results in testing the effects of a drug as a way to preven
A Step Closer to Major HIV Prevention Method A U.S. government panel has recommended the use of a once daily pill to help prevent HIV infection. The pill has been shown to be very effective in studies. The Food and Drug Administration, the FDA, now h
STEVE INSKEEP, HOST: Turns out there are some workouts that can improve your memory. NPR's Jon Hamilton reports on two approaches to brain training. JON HAMILTON, BYLINE: Brain training programs often target something called working memory. KARA BLAC
Prince William and Catherine Middleton's big wedding day is just hours away. And while people around the world prepare to toast to their future, some are also drawn to that other happy day nearly 30 years ago when William's parents, Prince Charles an
Overnight clashes between crowds of protesters and police in the Bangladeshi capital, Dhaka have left at least 10 people dead and hundreds injured. Police said protesters demanding new anti-blasphemy laws began pelting police with stones late Sunday,
Publishing group Pearson has announced it is to sell the Financial Times Group to Japanese media firm Nikkei for ?844m in cash. 培生出版集团已经宣布将《金融时报》集团以8.44亿英镑出售给日本新闻经济传媒公司。 Specul
Traditional Teaching Method Do your teachers still use traditional techniques to teach you nowadays? A revol- ution in teaching techniques is required now. In the past, we just took it for granted that a teacher' s aim was to teach the students all t
Data flow diagram 数据流程图 Database 数据库 Decentralization 分散化 Decision support systems 决策支持系统 Defined-benefit plan 养老金福利计划 Defined-contribution plan 资方养老金投入计划 Delayering 扁平化 Depressi