随机效应模型

[00:28.50]You'll hear three pieces of recorded material. [00:33.36]Before listening to each one, [00:36.91]you will have time to read the questions related to it. [00:42.06]While listening,answer each question by choosing A,B,C or D. [00:48.33]After

发表于:2018-12-03 / 阅读(251) / 评论(0) 分类 最新版英语听力教程

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 even It's even colder than yesterday.

发表于:2018-12-05 / 阅读(163) / 评论(0) 分类 每日攻克5词

By Nancy Steinbach Broadcast: November 19, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. When scientists want to test the effectiveness of a new drug, they usually divide

发表于:2018-12-15 / 阅读(145) / 评论(0) 分类 VOA2003(下)-环境与健康

Benjamin Frankin wondered about(at) lightning. He combined his curiosity with imagination and carried out his well-known experiment to show that lightning and an electric spark are the same thing. Cur

发表于:2018-12-30 / 阅读(289) / 评论(0) 分类 自考英语(一)78讲

Jennifer: Hello and a very warm and friendly welcome to the first 6 Minute English of 2013. My name is Jennifer and with me in the studio for today's programme is Callum. Happy New Year! Callum: Hi Jen - happy New Year! Jennifer: Have you made any Ne

发表于:2019-01-07 / 阅读(240) / 评论(0) 分类 六分钟英语

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Ever been woken up by the sound of the refrigerator compressor kicking on? Well, such clumsy heat exchange units featuring long metal coils may be on their way out. Becaus

发表于:2019-01-08 / 阅读(148) / 评论(0) 分类 Scientific American(八)月

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Ants are known for working together, operating as a unit for the good of the colony. But not so fast, say researchers from the Universities of Leeds an

发表于:2019-01-08 / 阅读(191) / 评论(0) 分类 Scientific American(三)月

今年7月,14岁的美国华裔少年刘继打破老虎伍兹的纪录,成为美国青少年高尔夫锦标赛史上最年轻的冠军,同时刷新老虎伍兹保持了19年的纪录。刘继出生在纽约州一个只有11万人口的小城市史

发表于:2019-01-09 / 阅读(169) / 评论(0) 分类 实用英语

From time to time, researchers stop clinical trials because the results seem almost too good to be true. A new international study shows that is probably because those results are not true. When researchers end a clinical trial early because the resu

发表于:2019-01-13 / 阅读(152) / 评论(0) 分类 VOA标准英语2010年(三月)

生活大爆炸第一季第六集_1:The Middle Earth Paradigm -Rajesh: Okay, if no one else will say I will. We really suck at paintball. 好吧,如果没人说那就我来说。我们在彩弹比赛中的表现实在太差了! -Howard: That wa

发表于:2019-01-28 / 阅读(237) / 评论(0) 分类 生活大爆炸第一季

今天我们要学的词是role model。 Role model, 榜样。 For black women across the country, Michelle Obama is a new role model, 对于美国各地的黑人女性来说,米歇尔奥巴马是她们新的楷模。奥巴马当选美国总统后,

发表于:2019-01-31 / 阅读(131) / 评论(0) 分类 英语每日一词

今天我们要学的词是random。 Random, 是随机、任意的意思。The firefighters have to undergo a random drug test once a year, 消防队员每年要接受一次是否服用毒品的抽查。The boxer refused to submit random blood tests

发表于:2019-02-03 / 阅读(137) / 评论(0) 分类 英语每日一词

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-05 / 阅读(149) / 评论(0) 分类 英语每日一词

As the development of the society, people want to conquer the environment, they use the high technology to change the environment, when people are satisfied with what they did to the nature, the nature is starting to teach human being a lesson. In th

发表于:2019-02-06 / 阅读(142) / 评论(0) 分类 英语作文

BEIJING, May 12 (Xinhuanet) -- Italian archaeologists(考古学家) are digging the remains of Lisa Gherardini, a 16th-century woman who is widely believed to be the model for the famous portrait Mona Lisa, AFP reported on Wednesday. The team of hist

发表于:2019-02-08 / 阅读(173) / 评论(0) 分类 英语新闻

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-13 / 阅读(201) / 评论(0) 分类 英语单词荟萃

Mimicry in Plants Plant adaptations can be remarkably complex. Certain species of orchids, for instance, imitate female bees, other plants look and smell like dead animals, and still others have the appearance of stones. These strange adaptations to

发表于:2019-02-17 / 阅读(92) / 评论(0) 分类 双语有声阅读

VATICAN CITY, Feb.28 (Xinhua) -- The resignation of Pope Benedict XVI came into effect at 8 pm local time (1900 GMT) on Thursday, who had left the Vatican by helicopter for the papal vacation retreat in south Rome earlier in the afternoon. The pope h

发表于:2019-02-17 / 阅读(160) / 评论(0) 分类 英语新闻

An increasingly popular business model lets participating companies give to charity while making a profit. But the approach is blurring the lines between for-profit and not-for-profit organizations and raising questions about the real drivers behind

发表于:2019-02-19 / 阅读(205) / 评论(0) 分类 英语新闻

Topics: Ask an American: underage drinking; to chalk (something) up to; fluke; quite; aint; domino effect and chain reaction Words: access consistency rebellious binge drinking DUI DWI assault date rape to model sexually transmitted disease unintende

发表于:2019-02-23 / 阅读(117) / 评论(0) 分类 美语听力 English Cafe
学英语单词
aesc
all metal coach
angle connector
assignable of authority
astronautte
Bass River
beer-lovers
bis(chloromethyl)ether
Biscoitos
black dog
blue bonnets
broft
Bromus grandis
bubbling rale
candidate image
Chesterian
coarsy
cockneyese
conjurator
copper brittleness
coreum
deroos
devests
DMADV
effortless
enamelled ware
entamoeba caviae
extended rubber
facsimile radio
fuel oil change-over indicator
full of the moon
genitive phrase
genonomy
globcom (global communication system)
glycine amide
grading machinery
Handauk
hash signs
hemoptysis of pulmonary tuberculosis
heterogeneous mixtures
hyperlocalized
hyponeural groove
index of export price
inducible protein
industrial applicability of an invention
inferior pharyngeals
initIndex
intermediate control
isobutyl bromide
ivory-bill
Jalacingo
Jarrillas
Jew-dom
kerving machine
labour physiology
last come first served
ledererite
live on the hump
logarithmic probability paper
Loir-et-Cher
lunchtimes
maximum longitudinal trim angle by load
meter protection circuit
mycosphaerella cryptomeriae
national income(ni)
natural rate interest
nicious
oaktags
office labourer
Oidium coccidioides
omniumgatherum
ovatest
owen's machine
perturbed periodic potential
Pinoyella simii
placelessly
pool cue
preemptive bid
privary lock
pseudo-acidity
purchasing-retaining ratio
quadratic hash
quilties
rami caroticotympanicus
ramp equipment
realization algorithm
reverse flank
rith
road surface drainage
running-shed
sealing gasket
serial time-sharing system
Simaroubaceae
simplicity of algorithm
solid mechanics
somethingfishy
Spirillum schuylkilliense
submerged spring
top arm
transcytoses
trypanosomidase