分层抽样的相对方差

541. He likes fishing. 他喜欢钓鱼。 542. Hes a lawyer. 他是个律师。 543. It doesnt make any sense for them to still be mad at you. 他们还生你的气,这没有道理。 544. Shes a natural entertainer. 她是个天生的表演者。 545. When he was a little boy, he was

发表于:2018-11-30 / 阅读(155) / 评论(0) 分类 新英语900句之生活篇

[0-1:59.18]Do you know that the harder thing to do and the right thing to do... 你知不知道:难做的事和应该做的事... [00:04.98]are usually the same thing? 往往是同一件事? [00:07.98]Nothing that has meaning is easy. 凡是有

发表于:2018-12-07 / 阅读(105) / 评论(0) 分类 听电影学英语-天气预报员

[00:06.86]We'll let you know. 我们会通知你的 [00:26.98]-Russ is here. -Okay. -拉斯在这儿 -好 [00:29.74]-Where's Mike? -lnside. -迈克呢? -在里面 [00:38.90]-Dave. -Hi, Russ. -戴维 -嗨,拉斯 [00:39.70]He's upstairs. He's still

发表于:2018-12-07 / 阅读(152) / 评论(0) 分类 听电影学英语-天气预报员

relative A husband and wife were driving down the road arguing with each other. They passed a pig farm and the husband said, Are they relatives of yours? Yes, she replied, I married into the family. Notes: 1. A husband and wife were driving down th

发表于:2018-12-26 / 阅读(100) / 评论(0) 分类 英语笑话(MP3+文本)

1. antagonize /n'tɡənaɪz/ vt. 对立 The official antagonized the leader of his own party by accusing him of cowardice. 那位官员谴责自己党内的领导人怯懦,与他产生敌对。 2. dissent /dɪ'sent/ vi. 反对 The vote approving th

发表于:2018-12-30 / 阅读(127) / 评论(0) 分类 突破英文词汇

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

发表于:2018-12-31 / 阅读(150) / 评论(0) 分类 商务英语必备1000字

A husband and wife drove for miles in silence after a terrible argument in which neither would budge. The husband pointed to a mule in a pasture. Relative of yours? he asked. Yes, she replied. By marriage. 一对夫妻开着车出去,走了很长一段时间谁也不

发表于:2019-01-02 / 阅读(104) / 评论(0) 分类 英文笑话

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

发表于:2019-01-03 / 阅读(149) / 评论(0) 分类 财会英语

Thailand's People's Power Party has nominated a relative of former Prime Minister Thaksin Shinawatra to become the nation's new leader. But as Ron Corben reports from Bangkok, fighting among the PPP's factions created uncertainties before the vote.

发表于:2019-01-11 / 阅读(140) / 评论(0) 分类 VOA标准英语2008年(九月)

Everyday Grammar: Three Reasons to Learn Relative Adverbs From VOA Learning English, this is Everyday Grammar. In an earlier program, we talked about the relative pronouns who, that, and which. We promised to give you more details about how to use re

发表于:2019-01-12 / 阅读(105) / 评论(0) 分类 2015年VOA慢速英语(九)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

发表于:2019-01-21 / 阅读(89) / 评论(0) 分类 天天商务口语

How to Safeguard Your Income Im a big believer in diversification. Putting all your eggs in one basket is dangerous, especially in your personal finance. Diversification is a good way to reduce your risks. The question is how we should go about diver

发表于:2019-01-31 / 阅读(155) / 评论(0) 分类 阅读空间

发表于:2019-02-01 / 阅读(124) / 评论(0) 分类 财会英语

Science and technology 科学技术 HIV and AIDS 人体免疫缺陷病毒和获得性免疫缺陷综合征 Till death do us part 直到死神将我们分开 Putting numbers on infidelity 细数出轨之罪 ONE of the problems of dealing with a sexual

发表于:2019-02-05 / 阅读(111) / 评论(0) 分类 经济学人科技系列

统计学名词英语单词 population 母体 sample 样本 census 普查 sampling 抽样 quantitative 量的 qualitative/categorical 质的 discrete 离散的 continuous 连续的 population parameters 母体参数 sample statistics 样本统计量 descriptive statistics 叙述统计学 i

发表于:2019-02-06 / 阅读(130) / 评论(0) 分类 英文语法词汇

我原来曾经给我的一个同学改作文,发现她经常写一些让我感觉哭笑不得的句子。 例如: At the first glance, the argument seems sound, but with a further look, I find it problematic. 前半句是忠实引用,后半

发表于:2019-02-09 / 阅读(116) / 评论(0) 分类 GRE作文

Relative Pronouns In this weeks episode of Everyday Grammar, we are going to discuss the relative pronouns who, that and which. A relative pronoun relates to the noun it is describing. Relative pronouns introduce a relative clause. Think of relative

发表于:2019-02-12 / 阅读(99) / 评论(0) 分类 2016年VOA慢速英语(七)月

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

发表于:2019-02-17 / 阅读(103) / 评论(0) 分类 阅读空间

natality 生育 fertility 生育率 fecundity 生育能力 birth rate, natality rate 出生率 births 出生人数 parity 胎次 premature birth 早产 life birth 活产 stillbirth 死产 birth peaks 出生高峰 mortality 死亡 mortality rate 死亡率

发表于:2019-02-18 / 阅读(115) / 评论(0) 分类 实用英语

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

发表于:2019-02-18 / 阅读(109) / 评论(0) 分类 英语口译
学英语单词
abb.
access log
actual decimal point
agitato
alkaline reserve
angle of deviation
antiadulteration
ariluss
armature end slug
artificial viscosity method
as occassion serves
base cavitation
beech-woods
bergmeal
Bovizole
brain retractor
brain tablet
capacity competition
cerous sulfide
chinese proverbs
Cinnamomum kotoense
clonemakers
commercial concern
commercial-airline
controlled frequency
debt-repayment
deracialised
diageo
direct labo(u)r expense
disease yeasts
editing control unit
Emberiza citrinella
Emily Dickinson
epatiol
fede
flag sense
folialiferous
forced block caving
Freudism
fruitbodies
gliding slab
go nap on sth
homologous chromosome
honour one's liability
ill-favoured
Introdouche
involuntary response
isolano (greece)
ivlev
just go
Klamath Marsh
La Hacienda, R.
lay leader
magan
metabolism of brain
mica box
modern figures
Monkey Run
Monkin
nanoproducts
netsurfing
Nickerson-Hunter cotton colorimeter
nonlinear circuit component
Norolon
nylon hawser
omphalotribe
on-the-fly printer
ostentful
otc stocks
P-CEA
p-cells
pedisequus
photoelectrotypes
pteroptochid
radioactive (mineral) deposit
real-time advanced visualization environment (rave)
recirculating air flow
replicating
resistance furnace installation
rostovtzeff
ruckus room
self-massages
smoothing plane
statury bronze alloys
stipulativeness
struke back
suspensorium of the hypopharynx
tent-fly
tetraaminecopper(ii) sulfate
the glass
things with defects
thirdborough
tip plate
tonights
trimpot
try squares
tuxy
United States Air Force
vacuum microbalance
value stream
VIRIDIANA
weybourne