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(242) / 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(291) / 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(247) / 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(273) / 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(271) / 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(292) / 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(209) / 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(228) / 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(312) / 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(196) / 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(255) / 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(261) / 评论(0) 分类 VOA常速英语2008年(四月)

发表于:2019-02-01 / 阅读(222) / 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(228) / 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(226) / 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(250) / 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(189) / 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(214) / 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(198) / 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(284) / 评论(0) 分类 王培廷分级书单三 James Marshall - Fox系
学英语单词
2's complement
actinostomes
adeem a bequest
aeei
allyl-
articulatio synovialiss
backport
banished
batch processing model
blood dissemination
bnr diode
Buller's shield
carbolizing
carry the cause
certificate trust list
characteristic partial differential equation
Cheongwansan
component video signal
compulsory commutation
connote
coordinations
cotunneling
crouchie
design for assembly
devonite
digital position measurement
disincorporated
dry bed
edirnes
electro-cast refractories
electromachanical light modulation
equilibrium glide
family census
flaman
fluorescent indicator panel
form manipulation objects
frequency pulse
Gafsa
gelatinating
globigerina type
headcopy
Heraclius
Heterophyes
high lead yarding
high q
hip hook
holbecks
hot source
hunger
hypercholesterolemic splenomegaly
inter-markets
intercorrelational
isoguanine
isotubulosine
James Earl Carter
maternal-fetal
Meldon
metahuman
mitchel
mountain lift
navigation communication satellite
noboritomycin
nose cap
osteolipoma
Otradinskiy
overall dead time
permitted explosive
pharping
podocarpus macrophyllus maki
post-Cronak
power switch
protruding
pupilloscope
quick pickup injector
reality film
reflamed
resonance tachometer
russian orthodox
sailorchest
Sasso Marconi
scorbutic diathesis
scorching quality
sea weather report
secreting
short-range hydration
sir john falstaffs
static bifurcation
station acquisition
style-wise
superfete
superunleaded
tamburitzas
temperature well logging
tin oxide
to wet
triclinic pyramid
TSH-RF
Twinkle, twinkle, little star
two-phase locking
tyawan
wraggle
ytp