分层多段抽样

Why do you need a boy who's a brilliant reader?Annie asked the man. Because I have just lost two fairies! he said. Hepointed at Jack. You can read both!And you are nuts, thought Jack. Well, bye, see youaround, he said. He nudged Annie to move along.

发表于:2018-12-10 / 阅读(332) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

For years, actor Taro Alexander tried to hide his stutter, but an unplanned pause changed his life. It's Friday morning once again, which means it's time for StoryCorps. This project records people across the country talking with each other about th

发表于:2018-12-19 / 阅读(415) / 评论(0) 分类 2007年NPR美国国家公共电台

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

发表于:2018-12-30 / 阅读(336) / 评论(0) 分类 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

发表于:2018-12-31 / 阅读(392) / 评论(0) 分类 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

发表于:2019-01-03 / 阅读(381) / 评论(0) 分类 财会英语

Vicious weather in the southern plains. Two deadly tornadoes swirling in unison in southern Oklahoma. All of it caught on tape. There comes one right there. Look at them. They are all over. As you can hear, storm chasers were only reporters because i

发表于:2019-01-08 / 阅读(425) / 评论(0) 分类 CNN2010年(五)月

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

发表于:2019-01-08 / 阅读(312) / 评论(0) 分类 英语新闻

British scientists have found a drug used to fight leukemia that appears to stop multiple sclerosis in its early stages and restore lost function to patients. Although still in the clinical trial phase, it is being called by some, the most promising

发表于:2019-01-13 / 阅读(341) / 评论(0) 分类 VOA标准英语2008年(十月)

日本富士通实验室的研究人员开发了一种无线充电系统,可同时给一定范围内的手机、数码相机及手提电脑等各种移动设备充电,无需使用电缆。该系统最早可于2012年正式推出使用。该系统被

发表于:2019-01-19 / 阅读(420) / 评论(0) 分类 阅读空间

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(297) / 评论(0) 分类 天天商务口语

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thank you!

发表于:2019-01-26 / 阅读(367) / 评论(0) 分类 英语单词荟萃

By Anjana Pasricha New Delhi 28 April 2008 India has launched a record number of satellites into space in a single mission. The launch marks a milestone for the country's space program. Anjana Pasricha reports from New Delhi, India wants to emerge as

发表于:2019-01-31 / 阅读(365) / 评论(0) 分类 VOA常速英语2008年(四月)

发表于:2019-02-01 / 阅读(326) / 评论(0) 分类 财会英语

今天我们要学的词是center stage。 Center stage, 中央舞台,引伸为注意的焦点。Abortion opponents saw their issue take center stage during Supreme Court nominee Sotomayor's confirmation hearing, 反堕胎者看到,他们所关心的

发表于:2019-02-08 / 阅读(311) / 评论(0) 分类 英语单词荟萃

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

发表于:2019-02-08 / 阅读(313) / 评论(0) 分类 英语新闻

BEIJING, June 28 (Xinhua) -- Agricultural Bank of China (ABC) is set to raise up to 23.2 billion U.S. dollars in the world's largest listing, according to the price range the lender set for its shares. ABC said late Monday in a statement(声明)

发表于:2019-02-08 / 阅读(343) / 评论(0) 分类 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

发表于:2019-02-17 / 阅读(294) / 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(292) / 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(291) / 评论(0) 分类 英语口译

图片1 图片2 图片3 图片4 图片5 图片6 图片7 图片8

发表于:2019-02-27 / 阅读(382) / 评论(0) 分类 王培廷分级书单三 James Marshall - Fox系
学英语单词
-pants
.mo
alpha foetoprotein
Aminophenazoneco
amplifier block
areadiness
auxiliary point
avaite
bandquest
be transported with joy
bietanautine
brown tide
cob-nuts
concurring authority
consarning
constant voltage regulation
contact electrode process
control-budget variance
depollution
dioptric anamorphosis
display shape
falsaries
Fas, G.de
fast green
finished jobs
genus Platypoecilus
gross purchases
Guihaia
halibut liver oil
head sheave
headload
heat and power cogeneration
I. H. A.
in great part
indoor coal yard
initialise
inner address
instructionless
INTERCULTURATION
interferon inducer
intramontane
ittiolo
japie
lashing out
Linares de Mora
Little Office
Mach hold
mismachining tolerance
neologization
nevoid lipoma
nummulary
octopus-like
oenophil
olivaries
one parent family
oophore
plunger viscometer
post-harvset ripening
pressing load
probabilistic automation
profit through circulation
protomerites
pterygomaxillary ligament
quadrupolar-lace coil
quasibarrelled
radioactivate
re-enable
reform and open policy
Rheumaeyl
river persistence
rotational culture
round strand wire ropes
rounding-off method
salt bath sintering
seedlikest
segmentation sphere
shape information
Shen Nong's Herbal
Simplex transmission.
sixtiesish
speedometer flexible shaft sleeve
Staniljub
stearin(e) pitch
subcardinal vein
submicroscopic crack
thyridiate
to a higher degree
toggeries
Tom Tiddler's ground
totalitarianize
toxic plant
toxinemia
trace of precipitation
tuyere valve
ulpa
underground directional layout
unevenness at joint
vascular
viticultures
Yeongan
you are all wet
Zuider Zee