[统计] 整群抽样的相对方差

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

发表于:2018-12-11 / 阅读(129) / 评论(0) 分类 365个英语简短小故事

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(134) / 评论(0) 分类 英语笑话(MP3+文本)

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(197) / 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(144) / 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(191) / 评论(0) 分类 财会英语

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

发表于:2019-01-11 / 阅读(155) / 评论(0) 分类 2006年VOA标准英语(十一月)

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(150) / 评论(0) 分类 2015年VOA慢速英语(九)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

发表于:2019-01-13 / 阅读(136) / 评论(0) 分类 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

发表于:2019-01-14 / 阅读(137) / 评论(0) 分类 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

发表于:2019-01-14 / 阅读(137) / 评论(0) 分类 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

发表于:2019-01-21 / 阅读(122) / 评论(0) 分类 天天商务口语

发表于:2019-02-01 / 阅读(166) / 评论(0) 分类 财会英语

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

发表于:2019-02-02 / 阅读(163) / 评论(0) 分类 2007年VOA标准英语(五月)

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(148) / 评论(0) 分类 经济学人科技系列

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

发表于:2019-02-06 / 阅读(225) / 评论(0) 分类 VOA标准英语2009年(十二月)

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(140) / 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(134) / 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(149) / 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(148) / 评论(0) 分类 英语口译

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

发表于:2019-03-04 / 阅读(210) / 评论(0) 分类 环球英语 Spotlight
学英语单词
Acetophenolisatin
Ainsliaea nervosa
airborne afmag method
alga glomerules
amphibian automobile
antenna disconncet switch
arrhenophagus chionaspidis
ass-backwards
binary format code
blast-resistant design
Boulanger, Georges Ernest
bufton
bulk cooky
burr
carbon leakage
cassette tape deck
CDP-diglyceride
cincolic acid
climbing-frame
copy-typist
correlation factor
creep properties
Deinanthe caerulea
desiccating machine
devorations
dihydrohydroxycodeinone
direct extruders
dulce
dynamic microprocessor
easy credit term
efflux deflector cone
emmew
erythrai
f's us
false quay
Fetotoxins
first halves
fixed unit
flash-barrier
frequeucy band
fusicellular
gerontal
get scent of
granate
groined arch
ham it up
have not a stiver
hemizygous stage
henige
hexadecimal address
homospores
hoxamycin
inspectator
irregular service
iwerks
line spectra
loose-jointedly
lousing up
m-tv
macroadenomas
making an investment to secure an interest
MCDK
media awareness
Mella, Fiume
membrane envelopes
metrogenic
morphic resonance
nanga parbat (nangaparbat pk.)
nfa
nimblewitted
obelion
Oleszno
oviraptorosaurs
percentage speed variation
poephila castanotiss
porta
pre-speech
programmer work station
radial support system
Rehderodendron gongshanense
rhusflavone
Richea pandanifolia
rigaudons
schlumbergeras
selfsamest
shaggy-dog story
spun-bonded
staghorn sumacs
SYDP
São Fidélis
table side girder
the welcome
time to go
trimoda necessitas
tv services of digital multi-channel satellite broadcasting
uncombative
vectored priority interrupts
Ventas de Huelma
vibrating screen dissolver
waist measurement
word blindnesses