单词：snowball sampling
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Forget Polly wanna cracker. Polly wants to boogie. Or so say scientists in a pair of papers in the April 30th issue of the journal Current Biology. They
Scientific American(四)月
The Arctic's Anti-Snowball Snowball Effect 北极的反雪球效应 Last Christmas, Santa Claus must have been loading his sleigh in a t-shirt and shorts. Temperatures at the North Pole crept up toward the freezing point when they should have been mi
2017年科学美国人(七)月
Animal Farm by George Orwell Within a few weeks Snowball's plans for the windmill were fully worked out. The mechanical details came mostly from three books which had belonged to Mr. Jones--'One Thousand Useful Things to Do About the House', 'Every M
有声英语文学名著
Animal Farm by George Orwell Chapter III How they toiled and sweated to get the hay in! But their efforts were rewarded, for the harvest was an even bigger success than they had hoped. Sometimes the work was hard; the implements had been designed for
有声英语文学名著
Animal Farm by George Orwell Chapter I Mr. Jones, of the Manor Farm, had locked the hen-houses for the night, but was too drunk to remember to shut the pop-holes. With the ring of light from his lantern dancing from side to side, he lurched across th
有声英语文学名著
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
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汪培珽分级书单（一）A Picture Reader系列
I listen to podcasts nearly every day. Not only do I love the fact that I am learning each time I hear one, but I also(1) love the fact that they are free and accessible. It's interesting to consider(2) the differences between one podcast and another
英语博客 A cup of English
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
With H1N1 on the rise and flu shots hard to find, few things are as terrifying as [sneeze sound]. But now a report in the journal Psychological Science suggests that coughing and sneezing can spread more than viruses. They also spread fear, of germs
Scientific American(十一)月
今天我们要学的词是snowball。 Snowball, 雪球，作为动词，就是象滚雪球一样，迅速扩大。 The dispute between the students and the school has snowballed into a public debate, 学生和校方之间发生的争执迅速发展成
英语单词荟萃
今天我们要学的词是snowball。 Snowball, 雪球，作为动词，就是象滚雪球一样，迅速扩大。 The dispute between the students and the school has snowballed into a public debate, 学生和校方之间发生的争执迅速发展成
英语每日一词
[全屏观看] 点击右键- 另存为 可保存这个Flash影片 游戏说明: 点PLAY SNOWBALL CLASSIC。开始游戏。键盘方向键盘控制移动。
好玩英语小游戏
[ti:UNIT 6 Winter in Canada Lesson 42] [0:00.513]UNIT 6 [0:02.358]Winter in Canada [0:04.799]Lesson 42 [0:07.151]Winter Fun [0:09.525]THINK ABOUT IT! [0:12.025]Would you like to play in the snow? [0:16.028]What would you like to play? [0:19.413]What
河北教育初中英语（初中起点）七年级下册
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
snowball snow job 如果天气很热的话，讲几个和冷的东西有关的俗语也许会让人感到舒服一些。好吧，下面我们就来讲由
美国习惯用语
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