单词：three-stage cluster sampling
单词：three-stage cluster sampling 相关文章
Cluster balloonists tie a bunch of helium balloons to a lawn chair, sit in the chair, cut the anchor rope, and go flying into the wild blue yonder. To land, they cut some of the cords attaching the balloons to the chair. A small group of daredevils h
365个英语简短小故事
今天我们要学的词组是set the stage。 Set the stage的意思是为某件事做好准备，提供条件。比如，希拉里.克林顿06年再次当选参议员，为她08年竞选总统提供了条件 -- The reelection set stage for her pres
英语每日一词
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
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
CAIRO, Dec. 15 (Xinhua) -- The first stage of the referendum of Egypt's draft constitution ended Saturday night at 11:00 p.m. local time (2100 GMT). Due to the high turnout, the closing time of the referendum was extended from 7:00 p.m. local time (1
英语新闻
By Lisa Schlein Geneva 12 November 2006 A Cluster Bomb Unit, dropped by Israeli warplanes, sits in southern village of Ouazaiyeh, Lebanon, November 9, 2006 A new international treaty aimed at reducing the deaths and injuries from cluster bombs, land
2006年VOA标准英语（十一月)
By Margaret Besheer Beirut 27 August 2006 Lebanese Sobhi Abbas, top, comforts his son Abbas Abbas, 6-years-old, who was injured while playing with a cluster bomb in Blida, on Saturday August 26, 2006 Two weeks ago, a U.N. brokered truce ended 34 day
2006年VOA标准英语（八月）
Hundreds of Thousands of Cluster Munitions Destroyed A new report says governments that joined the treaty banning cluster munitions have destroyed nearly 750-thousand of the weapons since 2008. However, it also says there are credible allegations of
VOA标准英语2012年(九月)
VOA Finds Evidence of Syrian Cluster Bomb Use In Azaz, Syria, in late January, Syrian government forces used what arms experts say is a particularly deadly weapon. Residents say a plane dropped nine large cluster bombs on this neighborhood on the out
VOA标准英语2013年(三月)
Cluster Munitions Have Prolonged Impact Mohamed is 13 years old. Two years ago, he played with a shiny metal object he found outside his home in Benghazi, Libya. He didn't know it was a cluster munition until it exploded. Cluster munitions release sm
VOA标准英语2013年(三月)
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 Lisa Schlein Geneva 16 May 2007 In a just released report Wednesday, Handicap International says hundreds of millions of people worldwide face a daily risk of death or maiming by cluster bombs. Lisa Schlein has more for VOA from Geneva, where the
2007年VOA标准英语（五月）
Oxygen therapy can bring drug-free relief to many Vidushi Sinha | Washington, DC 15 December 2009 A new study shows that breathing pure oxygen can considerably lessen the agony experienced with severe headaches Cluster headaches are described by suff
VOA标准英语2009年(十二月)
MADRID, Aug. 27 (Xinhua) -- Joaquin Rodriguez won his second stage of this season's Vuelta de Espana (Tour of Spain) cycle race, which finished in the town of el Escorial on Saturday. Rodriguez was the strongest finisher on the steep ramp at the end
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
According to the Daily Mail on December 1, American daredevil Jonathan Trappe travelled an astonishing 100 miles by flying a cluster of Mexican flag-colored balloon over Mexico with the speeds of 18 to 50 mph. His flight was to celebrate the Mexican
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Voice 1 Welcome to Spotlight. I'm Ruby Jones. Voice 2 And I'm Ryan Geertsma. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Soraj Ghulam Habib is a young
环球英语 Spotlight