单词：purposive sampling survey
单词：purposive sampling survey 相关文章
Dialogue A Today is the first day of Howard's new job. He is in charge of collecting surveys in front of a department store. Howard:Hello. Do you have a minute to spare? Woman 1:I'm sorry. No. Howard:OK. Excuse me, could I interest you in filling out
常春藤生活英语
U.S. teenagers today are less hopeful than they were just five years ago about America's ability to address its most critical problems, from the economy and global warming to international terrorism. But a new survey of American high school students
VOA标准英语2008年（八月）
QC procedure 品管流程 What issues do we need to address to work out new QC procedures? 在制定新品管流程之前，有哪些問題必須先處理？ quality standard 品質標準 This year, Metro Factory experienced a noticeable decline in q
商务英语必备1000字
By Paul Sisco Washington 31 October 2007 A team of British explorers has announced they are going to the North Pole to measure the ice cap's thickness. The expedition, a collaboration of Cambridge University in Britain and a U.S. Navy oceanography sc
2007年VOA常速英语（十月）
1.audit 审计 2.attestation 鉴证 3.credibility 可信赖程度 4.audit of financial statements 财务报表审计 5.agreed-upon procedures 执行商定程序 6.high levels of assurance 高水平保证 7.compilation 编制 8.reliability 可靠性 9
财会英语
By Phil Mercer Sydney 03 October 2007 Australians have suffered a dramatic loss of confidence in the ability of the United States to manage international affairs. The first survey of attitudes by a center set up by the Howard government to improve re
2007年VOA常速英语（十月）
By Peter Fedynsky Moscow 20 September 2007 Estonia has refused permission for a geological survey in its territorial waters for a proposed gas pipeline under the Baltic Sea. But VOA Moscow correspondent Peter Fedynsky says the Russian-German project
2007年VOA标准英语（九月）
A survey conducted in predominantly Muslim nations shows an overall embrace of globalization, trade, and integration into the world economy. From Washington, VOA's Michael Bowman reports. For those who view Muslims as generally insular, inward-looki
VOA标准英语2008年（八月）
BBC Learning English Weekender Body image survey results Amber:Hello, I'm Amber, and youre listening to bbclearningenglish.com. In Weekender today, we listen to a report about a BBC survey of 25,000 young British people, asking about their body imag
Weekender
1.Bending 弯曲 A: What kind of parts do you usually need to bend? B: Tubular parts or stampings. A：什么样的零件一般需要进行弯曲加工？ B：管状零件或冲压件。 2.Cycle time 工作周期 A: What is the cycle time of the injection molding machine？ B: Three
天天商务口语
By Cindy Saine Washington 16 November 2007 An independent survey on racial attitudes in the United States shows a growing number of African Americans say they are worse off now than they were five years ago, and that they don't expect their lives to
VOA常速英语2007年（十一月）
A new survey by the British Red Cross finds most Britons are unaware of major conflicts in the world, besides Iraq and Afghanistan where the British military is engaged. Less than one percent of those surveyed identified the major African conflict z
VOA标准英语2008年（十月）
ATHENS, March 15 (Xinhua) -- In the third year of a harsh austerity and reform program, an overwhelming 94 percent of Greeks oppose the measures aiming to resolve the debt crisis, giving boost to the anti-bailout main opposition Radical Left SYRIZA p
英语新闻
BEIJING, Aug. 31 (Xinhuanet) The pressure of modern society is taking a toll on sexual satisfaction, experts say following the release of an online survey. About 34 percent of people polled in the survey said that they are unsatisfied with their sex
英语新闻
今天我们要学的词是survey。 Survey, 是调查的意思。有些调查很正式。比如说，A comprehensive survey shows that support for suicide bombing against civilians has fallen sharply across the Muslim world since 2002, 一项综合调
英语每日一词
BEIJING, April 26 (Xinhua) -- Chinese children are accessing the Internet earlier than ever, according to a survey on minors' use of the Internet and social networking services published on Thursday. The survey, conducted by the Young Pioneers of Chi
英语新闻
It's a stat that gets bounced around as e-mail-forward wisdom: men think about sex every seven seconds. Even when the idea lacks this mythical specificity and grandiosity (that's 7,200 times a day!), the idea that men think about sex basically all th
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left-skewed 左偏 negative-skewed 负偏 right-skewed 右偏 positive-skewed 正偏 contingency table 列联表 sampling distribution (of a statistic)(某个统计量的) 抽样分布point estimate 点估计值 point estimator 点估计式 unbiased
英语口译