分层抽样;[统计] 分层样本

1.We assure you that such things will not happen again in our future deliveries. 我们保证这类事情在将来的交付中不再发生 2.Wed like to avail ourselves this opportunity to assure you of our broad attention in handling your future ord

发表于:2018-11-29 / 阅读(119) / 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:2018-12-17 / 阅读(57) / 评论(0) 分类 英语口语天天练-大米

The way we sample much of the world's oceans, to see what's living down there, is pretty basic: Ask fishermen. Or just stick a net down there, and examine what we catch. Neither method is ideal. Because you basically catch the fish and kill them. Phi

发表于:2018-12-24 / 阅读(54) / 评论(0) 分类 2016年Scientific American(十一)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Rats have long been guilty of spreading disease. But now they've gone into the diagnosis side. Because rats can be trained to spot tuberculosisand to do

发表于:2018-12-24 / 阅读(77) / 评论(0) 分类 Scientific American(十二)月

Problems with samples A: John? Can you come over here for a second? B: Certainly, Mr. Emory. What can I do for you? A: I need you to take a look at these samples. I think there are a few problems. B: Sure. Let me look over them and Ill bring them bac

发表于:2018-12-25 / 阅读(55) / 评论(0) 分类 办公室英语口语

Mars Rover to Begin Taking Soil Samples This Week Jessica Berman NASA engineers say the Mars rover will begin taking its first soil samples as soon as it departs the landing platform . Engineers say t

发表于:2019-01-04 / 阅读(108) / 评论(0) 分类 VOA2004(上)--各类新闻

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Wine can help keep conversation flowing at a dinner party. And now it looks like that wine may aid in materials science as well. Japanese researchers dis

发表于:2019-01-08 / 阅读(162) / 评论(0) 分类 Scientific American(三)月

BEIJING, Nov. 9 (Xinhuanet) -- Routine bowel screening can cut deaths from bowel cancer by 27 percent, a latest Scottish study finds. The result was presented at the National Cancer Research Institute's (NCRI) conference in Liverpool. Funded by the S

发表于:2019-01-19 / 阅读(67) / 评论(0) 分类 英语新闻

一、询求样品 1.本公司相信,4月18日寄出的纪念品必已收到。本公司极为乐意知悉,此批货物是否合于贵公司的意愿,请来函告知。 We trust that the samples of souvenirs sent on the 18th April have reached

发表于:2019-01-21 / 阅读(67) / 评论(0) 分类 天天商务口语

一、寄样 英语 :询求样品 1.如能提供下列各种高档印刷用纸,请寄样品。 Will you please send us samples of the best printing papers you can offer of the following kinds. 2.贵公司的纸张如能符合我方要求,而且价格

发表于:2019-01-21 / 阅读(56) / 评论(0) 分类 天天商务口语

一、寄样 英语 :询求样品 1.如能提供下列各种高档印刷用纸,请寄样品。 Will you please send us samples of the best printing papers you can offer of the following kinds. 2.贵公司的纸张如能符合我方要求,而且价格

发表于:2019-01-21 / 阅读(64) / 评论(0) 分类 天天商务口语

一、询求样品 1.本公司相信, 4月18日寄出的纪念品必已收到。本公司极为乐意知悉,此批货物是否合于贵公司的意愿,请来函告知。 We trust that the samples of souvenirs sent on the 18th April have reached you.

发表于:2019-01-21 / 阅读(60) / 评论(0) 分类 天天商务口语

BEIJING, Sept. 26 (Xinhuanet) -- Fu Ming'ai was reunited with his family on Sunday after 22 years. He is one of the more than 1,400 abducted children who were helped by a national DNA database, which helps match trafficked children and their parents.

发表于:2019-02-02 / 阅读(98) / 评论(0) 分类 英语新闻

By Chad Bouchard Jakarta 07 February 2007 The Indonesian government has announced it is withholding samples of a deadly bird flu virus in light of its new partnership to develop a vaccine with a U.S. drug company. As Chad Bouchard reports from Jakart

发表于:2019-02-05 / 阅读(102) / 评论(0) 分类 2007年VOA标准英语(二月)

一、询求样品 1.本公司相信, 4月18日寄出的纪念品必已收到。本公司极为乐意知悉,此批货物是否合于贵公司的意愿,请来函告知。 We trust that the samples of souvenirs sent on the 18th April have reached you.

发表于:2019-02-08 / 阅读(55) / 评论(0) 分类 天天商务口语

样品用语 样品 sample 模式||样本||图案 pattern 标本 specimen||type 模式||规范 model 标准 standard 说明书||商标||标记 description brand 样品卡 sample card 样品本 sample book 样品号码 sample number 样品簿 sample s

发表于:2019-02-08 / 阅读(70) / 评论(0) 分类 实用英语

BEIJING, Jan. 05 (Xinhuanet) -- Tighter licensing and banning unlicensed food processors are two measures needed to improve the poor quality of cooked food in Guangzhou markets, says a new proposal. The proposal, to be presented to the Guangzhou comm

发表于:2019-02-14 / 阅读(62) / 评论(0) 分类 英语新闻

I mostly consider my freebie and free sample addiction as a fun hobby, but throughout the years I have learned that are a few dependable freebies that make it possible to not spend any money at all in certain areas of my life。 很多时候我将自己

发表于:2019-02-18 / 阅读(63) / 评论(0) 分类 阅读空间

Samples! Fresh peaches. Take a sample. 试吃!新鲜的桃子。试吃一下吧。 Good morning. Could I have one of those? 早上好。我能尝一个吗? Of course. Here you are. 当然可以。给你。 One more, please. Thank you. 请再给一个

发表于:2019-02-19 / 阅读(114) / 评论(0) 分类 咱们裸熊

This involved bombarding samples with neutrons in a small nuclear reactor and carefully counting the gamma rays that were emitted; 这项技术包括在一个小型核反应堆里用中子轰击样品,仔细计算释放出来的射线。 it was ext

发表于:2019-02-25 / 阅读(137) / 评论(0) 分类 万物简史
学英语单词
acid-test ratio
ahigh
arc suppressing coil
as crooked as a dog's hind leg
asswhore
automatic stabilizer
avoiding chord
azzones
ballsbridge
Bergatreute
biocapacity
bleached paddy soil
buckling criteria
Cimanuk, Sungai
closed grating
coefficient of utilization of useful capacity
colloidal fuel
colpeurynter introducing forceps
commodity producer
conductive band
convolation
cordons sanitaires
cross sell
dessicator
dicky-seat
Dmitrovsk-Orlovskiy
dominant laterality
double squirrelcage motor
ecological system
elevator apron
epimera
erysipelas gangraenosum
eschewal
Football's a game of two halves
forfending
formula plan
froben
genus limnobiums
glucoscilliphaeoside
Hall's anchor
hip line
homer a. thompsons
hydraulic-machinery
ignition-switch
input-output interface system
instantaneous center/centre of rotation
intrumental
isothymol
keyboard input
klepto
liver coccidiosis
log well
maritime law institute
mass-energy
mincer and bowl cutter
mode of transducer
Montils
multiethnic education
no-claim
nonresponses
one-hundred-dollar
passive infrared rangefinder
pedaling
permissible limit of vibration
personal contact
phospholipidomics
Photinia chingiana
phylum chaetognathas
Piggott
pinnatifid
posumbu
prosperoes
pseudotriton ruber
pyramid method of hull construction
pyrenophora japonica ito et kuribayashi
Ranella
reaming bit
rhyacophila formosana
ringal
screen house
searls
Semple treatment
sexidentate ligand
Sheykino
silicon impregnation
Soltvadkert
spermatorrheas
subspectra
syndesm-
Thal Des.
thixotropic hardening
thorup
three-membered
twin tail
two-track recorder
vacuum-gauge
Vallen
very low frequency band radiated field system
Vila da Maganja
vision signal
Wairio
wind measuring device