取样误差

A: Excuse me, Professor. I think there might be an error in my test score. B: Sure. Do you think that the total is wrong or that you got something marked wrong that should have been marked right? A: I think that the percentage is incorrect. B: Let's

发表于:2018-11-30 / 阅读(323) / 评论(0) 分类 英语情景对话-大学生活

You wake up every day to do your hair and put on a smile baby You do your best to hide the pain u feel inside... babe Your eyes say that u will never trust another man again U need to know that there's a place in my heart for you So girl u don't... [

发表于:2018-12-01 / 阅读(323) / 评论(0) 分类 英文流行歌曲MV

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发表于:2018-12-06 / 阅读(256) / 评论(0) 分类 斯伯恩自然拼音(MP3+PDF)

AS IT IS 2016-02-29 Egypt Says It Sentenced Boy, 4, to Prison in Error The Egyptian military admitted last week it made a mistake when sentencing a 4-year-old boy to prison for life. A mistaken identity and confusion inside the Egyptian court system

发表于:2018-12-08 / 阅读(248) / 评论(0) 分类 2016年VOA慢速英语(二)月

Father : Do you like Ray or Sam? Daughter: I like Ray. Father : Why? Daughter: Sam's OK, but Ray's taller, cuter and more interesting. What about you? Father : I like Sam better. Daughter: Why? Father

发表于:2018-12-08 / 阅读(695) / 评论(0) 分类 赖世雄初级美国英语

By George Grow Broadcast: July 6, 2003 (THEME) VOICE ONE: I'm Steve Ember. VOICE TWO: And I'm Phoebe Zimmermann with the VOA Special English program, People in America. Today, we tell the story of Sam

发表于:2018-12-18 / 阅读(246) / 评论(0) 分类 VOA2003(下)-美国人文故事

A: Excuse me, Professor. I think there might be an error in my test score. B: Sure. Do you think that the total is wrong or that you got something marked wrong that should have been marked right? A: I think that the percentage is incorrect. B: Let's

发表于:2018-12-26 / 阅读(246) / 评论(0) 分类 大学生活-College Life

It is early evening and soon this amphitheater will be standing room only for the evening show. Bats, hundreds of thousands of Mexican Free-tailed bats, are hungry tornado that swirls out of New Mexico's Carlsbad Caverns each night in search of food.

发表于:2018-12-30 / 阅读(300) / 评论(0) 分类 国家地理2007年

NEW YORK, Aug. 30 (Xinhua) -- French Open champion Li Na committed 54 unforced errors and was eliminated in the first round of the U.S. Open by 53rd-ranked teenager Simona Halep on Tuesday. Li, seeded sixth, lost 6-2, 7-5 to Romania's Halep, sufferin

发表于:2019-01-11 / 阅读(245) / 评论(0) 分类 英语新闻

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:2019-01-22 / 阅读(188) / 评论(0) 分类 英语原版童书

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:2019-01-22 / 阅读(214) / 评论(0) 分类 英语原版童书

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:2019-01-22 / 阅读(204) / 评论(0) 分类 英语原版童书

By Lisa Schlein Geneva 06 August 2007 The World Health Organization says all countries, with the exception of Indonesia, are sharing their avian influenza viruses. WHO says the failure to share virus samples could retard the development of an effecti

发表于:2019-02-05 / 阅读(298) / 评论(0) 分类 2007年VOA标准英语(八月)

【中文解释】 errorist是指总是犯错却自认为正确的人,错误份子,瞪眼睛说瞎话。 【英文解释】 Someone who repeatedly makes mistakes. Says stuff he believes is true, but anyone with common sense can see he's wrong. A

发表于:2019-02-09 / 阅读(224) / 评论(0) 分类 美国俚语

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发表于:2019-03-02 / 阅读(230) / 评论(0) 分类 加州英语分级GK

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发表于:2019-03-02 / 阅读(212) / 评论(0) 分类 加州英语分级GK

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发表于:2019-03-02 / 阅读(237) / 评论(0) 分类 加州英语分级GK

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发表于:2019-03-02 / 阅读(210) / 评论(0) 分类 加州英语分级GK

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发表于:2019-03-02 / 阅读(214) / 评论(0) 分类 加州英语分级GK

歌词如下: A ram sam sam, a ram sam sam Guli guli guli guli guli ram sam sam A rafi, a rafi, Guli guli guli guli guli ram sam sam A rafi, a rafi, Guli guli guli guli guli ram sam sam A ram sam sam, a ram sam sam Guli guli guli guli guli ram sam sa

发表于:2019-03-16 / 阅读(517) / 评论(0) 分类 英语儿歌274首
学英语单词
acute massive hemorrhage
adenemphraxis
alkaline washing
Alto Vista
anred
Aster fastigiatus
authentic data
beak iron
Beerta
bish bosh
bootables
character-driven
circular buffer architecture
coarse control rod
compressed-gas manometer
connection hijacking
copolymerizable monomer
correlation formula
current feedback amplifier
current source for measurement
day's residue
Dernadex
desiccate
dibromodiphenyl ether
discharge port
display generator
entity life cycle model
equiproportional
exclaves
fade zone
fall one's legs
fulcrate trophus
gloiosiphonia capillaris (huds.) carm
homoallylglycine
ignotum per ignotius
inertia force
inherent filter
intermediate nucleus
ischnura aurora aurora
light port
liquid suction heat exchanger
marceloes
maximum belt slope
Meatus nasalis medius
medicinal tea
megalopic
microionics
national geography
non-retentive material
notropis
offspringing
opard
ovariotherapy
over-slander
overlavish
pangenetic
pardosa pseudoannulata
peer-reviewed journal
perhyaline rock (c.i.p.w)
pre-prandial
pro forma bill
proboscideas
pterygoid branch
pulmonary eosinophilosis
quaternary carbon atom
racemosus
record release
retreating glacier
reveiwing
Rhododendron cerasinum
Rockwell superficial hardness test
roly-poly filly
running to
rural-urban continuum
schematisations
secretive
shampoos
shot her wad
Slavonski Brod
sleep mode
special body
spur impedance
staircase method
stupas
summit reach
suncus etruscus
taps
the east china sea
theaceaae tea family camelliaceae
thibeau
trade-names
trigoes
true boiling-point distillation
tube-to-tubesheet joint load
underclassman
Unified Medical Language System
unisounding
unlines
Verracos, Ensenada de
vertebra center
wet damage accident
yen y?eh chi