样本平均值的抽样分布

A: Why are you handing me a plastic cup? B: Your doctor wants to test your urine and needs a sample. A: How am I supposed to do that? B: We need you to urinate like you normally would, and then stop and finish into the cup. A: What am I supposed to d

发表于:2018-12-02 / 阅读(198) / 评论(0) 分类 英语情景对话-健康

[00:05.15]第十三部分 化验取样 [00:10.29]1.The first test is no problem, [00:12.92]做第一项检查没有问题, [00:15.54]but the second one has to be done on an empty stomach. [00:33.78]但第二项目得空腹做. [00:52.01]2.How long do I have to fast? [01:01.04]

发表于:2018-12-05 / 阅读(257) / 评论(0) 分类 医疗服务英语

[00:03.81]allowance :n.折让;备抵 [00:05.61]distribute :v.经销;代理 [00:07.49]distribution network :经销网 [00:09.97]distributorship :n.代理权;经销权 [00:12.06]exclusive :a.独家的 [00:13.97]hammer out :敲定 [00:15.79]minimu

发表于:2018-12-15 / 阅读(186) / 评论(0) 分类 商务英语分类核心1000词汇

A: What is that plastic cup for? B: Your doctor has requested a urine sample. A: Am I supposed to pee into the cup? B: We want what we call a clean sample. Urinate a drop or so into the toilet, and then stop the flow and urinate into the cup. A: Then

发表于:2018-12-16 / 阅读(160) / 评论(0) 分类 英语情景对话-健康

英语口语王 想说就说(五)16

发表于:2018-12-26 / 阅读(166) / 评论(0) 分类 英语口语王-想说就说(五)

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(204) / 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(196) / 评论(0) 分类 财会英语

The undersigned parties hereby agree to form a _____________ (specify type of business entity), in the state of ___________, primarily for the following purposes: ______________ The principal place of

发表于:2019-01-03 / 阅读(174) / 评论(0) 分类 财会英语

Below you will find a sample outline and the essay written from that outline. OUTLINE Paragraph 1 (Introduction) I. Leading sentence: It took me eighteen years to realize what an extraordinary influence my mother has been on my life. II. Summary of m

发表于:2019-01-20 / 阅读(211) / 评论(0) 分类 实用英语

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(126) / 评论(0) 分类 天天商务口语

发表于:2019-02-01 / 阅读(179) / 评论(0) 分类 财会英语

BEIJING, Feb. 5 (Xinhua) -- China on Tuesday unveiled reform guidelines on income distribution amid growing public concerns over a widening wealth gap. The guidelines encourage further work to improve the initial distribution system and stepped-up ef

发表于:2019-02-03 / 阅读(154) / 评论(0) 分类 英语新闻

The men take everything, but the women -- nothing -- Camp resident Rosemonde Desmesier Residents of makeshift tent cities throughout Port-au-Prince say that conditions have improved since the earthquake three weeks ago, but shortages of food and reli

发表于:2019-02-03 / 阅读(186) / 评论(0) 分类 VOA标准英语2010年(二月)

Former U.S. President Bill Clinton, the United Nations special envoy to Haiti, is visiting that earthquake-ravaged country, where relief efforts are gaining momentum as tens of thousands of survivors await food, water and other basic necessities. In

发表于:2019-02-03 / 阅读(156) / 评论(0) 分类 VOA标准英语2010年(一月)

By Lisa Schlein Geneva 21 August 2007 United Nations aid agencies say the distribution of humanitarian assistance to victims of Peru's devastating earthquake remains problematic. But they say the situation is beginning to ease. Lisa Schlein reports f

发表于:2019-02-03 / 阅读(232) / 评论(0) 分类 2007年VOA标准英语(八月)

BEIJING, July 11 (Xinhua) -- The State Council, or China's Cabinet, announced on Wednesday that it will boost the development of the nation's distribution industry with the goal of establishing a modern goods distribution system that is efficient, co

发表于:2019-02-08 / 阅读(174) / 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(139) / 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(166) / 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(153) / 评论(0) 分类 英语口译

A: What is that plastic cup for? B: Your doctor has requested a urine sample. A: Am I supposed to pee into the cup? B: We want what we call a clean sample. Urinate a drop or so into the toilet, and then stop the flow and urinate into the cup. A: Then

发表于:2019-02-27 / 阅读(176) / 评论(0) 分类 健康-Health
学英语单词
Achchen, Mys
admission in pleading or evidence
aerotropic
alchornidine
alpha-particle radiation effects
anisotonic solution
antirealist
anvil pillar
backfitting
ball pond
Bliksvær
bougainvillaeas
brief appraisal
camping site
carrier aircraft
cherty loam
cinnia
co-buyer
colour shift
CONAG (combined nuclear and gas turbine)
crystal-diffraction spectrometer
cutwith
data collection and analysis system
decode operation
deee-lites
diabetic acidosis
e filing
eight stock
electrostatic discharge
English partridge
factor reverse test
feedback-clamp circuit
fenderbar
follow-up valve
funebrious
gilliard
going and growing concern
graded post
gremmies
hamito-semitics
holdovers
Horreby
hysteroscopies
ill-boned
illuminato
Indian arrowroot
islamiah
keep one's hand on
large capacity n.c.turning machine
length of car body
lock-box system
low-range
Lynx rufus
mandibular bone
mocking birds
mokarzel
nakamal
nandon
neuroglia tissue
ngolas
nonkinetic analysis
noonday
not negotiable check
ossifying fibroma
p1-CPY
panel-mounted
parametic equation
pattiepan
pedal rod bracket
pericycles
polyadenylation signal
pressure transformator
pronominal subject
protamine
public outcry
radiation modes
ram compression
rate of transmission
regeneration heat exchanger
remarginalize
Ruivo, C.
run in the family
Schlenke loudspeaker
shot cleaner
small end bearing
snake-dancing
solvency
steam permeability
teterboro
threat model
three-photon annihilation
translation register
trial closing
trochlea of ankle bone
turned to
Ulyanivka
underflow in calculators
Villamblard
wish list
yardfuls