每样本位元数

Before you pay big money for caviar, check with two New York City high school students. Brenda Tan and Matt Cost worked with DNA barcoding experts at Rockefeller University and other researchers at the American Museum of Natural History to identify h

发表于:2018-12-02 / 阅读(148) / 评论(0) 分类 Scientific American(十二)月

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(162) / 评论(0) 分类 英语情景对话-健康

by Jason Marshall Sometimes statistics* seems magical. Of course, there isnt really anything magical going onbut the fact that statistical methods can be used to pull useful information out of a hatful of messy data is, at a minimum, remarkable. And,

发表于:2018-12-07 / 阅读(142) / 评论(0) 分类 数学英语

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(146) / 评论(0) 分类 英语情景对话-健康

Scientists try to document as many past El Nino events as possible by piecing together bits of historical evidence, such as sea-surface temperature records, daily observations of atmospheric pressure and rainfall, fisheries records from South America

发表于:2018-12-19 / 阅读(94) / 评论(0) 分类 托福英语

by Jason Marshall In the last article, we talked about averages and one specific way statistics can help answer questions without letting emotions interfere. But the type of average value we talked about is just one of manyuseful meanings assigned to

发表于:2019-01-02 / 阅读(218) / 评论(0) 分类 数学英语

by Jason Marshall In the last article, we learned that there are several ways to calculate the average value of a sample of data. We focused on one such method, the arithmetic mean, and used it to calculate the average number of potato chips in a bag

发表于:2019-01-02 / 阅读(192) / 评论(0) 分类 数学英语

Bit - This is a contraction of the term Binary digIT, and it is a number in base 2, which means that it can only be a 0 or a 1. Bit Error Rate - The rate of message bits that are in error (an error ra

发表于:2019-01-03 / 阅读(131) / 评论(0) 分类 电信英语

Katrina Katrinka was like any other ordinary mother with two kids, a station wagon, and a 60 foot tall crane in her back yard. The crane just showed up one morning. A construction company was building an apartment building down the street. One day th

发表于:2019-01-03 / 阅读(124) / 评论(0) 分类 趣味英语

E-mail 电子邮件 E-mail, the short form for electronic mail, is one of the popularly used functions in Internet. It is the modernest communication service which can send a message to any person in the world who has an email address within a short

发表于:2019-01-07 / 阅读(136) / 评论(0) 分类 实用英语

1. Gunfire at the Pentagon is being described by officials as a random event, not part of a larger plot. Parts of two bullets were found embedded in two windows, shattering but not breaking them. For a while, police closed down the area. 2. That form

发表于:2019-01-11 / 阅读(162) / 评论(0) 分类 美联社新闻一分钟2010(十月)

AS IT IS 2015-07-07 Report: Faster Speeds, Less Space on Internet 因特网速度更快、占用空间更小 A new report says Internet speeds around the world are getting much faster. The report comes from Akamai, a business that provides cloud comp

发表于:2019-01-12 / 阅读(111) / 评论(0) 分类 2015年VOA慢速英语(七)月

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(189) / 评论(0) 分类 实用英语

My plan is to make a fire using a method 我准备用一种自人类取火伊始 that's been around for as long as man has been making fire the hand drill. 就使用的取火方法 钻木取火 No matches, no flints, just two bits of wood. 不用火柴

发表于:2019-02-13 / 阅读(130) / 评论(0) 分类 荒野求生

Rapunzel: I cant believe I did this. I cant believe I did this. I CANT BELIEVE I DID THIS! Mother would be so furious /ˈfyʊəriəs/. Thats okay, what she doesn't know wont kill her, right? Oh my gosh, this would kill her. THIS IS SO FUN!!! I am a h

发表于:2019-02-16 / 阅读(102) / 评论(0) 分类 跟着美剧练发音

Of course, when thinking of beauty, I usually think of physical beauty, the female form, a face that could launch a thousand ships, Helen of Troy注. That is beauty, I suppose, or should I say superficial[表面的] beautyeye-candy beauty. I am not s

发表于:2019-02-18 / 阅读(118) / 评论(0) 分类 英语美文

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(162) / 评论(0) 分类 健康-Health

Shut up and let me go This hurts I tell you so For the last time you will kiss my lips Now shut up and let me go Your jeans were once so clean I bet you've changed your wardrobe since we met No oh so easily you're over me Gone is love it's you that o

发表于:2019-03-02 / 阅读(146) / 评论(0) 分类 影视英文歌曲

Now, have any of y'all ever looked up this word? 好,你们中有谁查过这个单词? You know, in a dictionary? Yeah, that's what I thought. 用字典?是的,我想也就这个样子。 How about this word? Here, I'll show it to you. 这个单

发表于:2019-03-04 / 阅读(195) / 评论(0) 分类 TED演讲教育篇

I just wanted to say I love you and the person writes back,Oh babe, I love you too so much 我只想说我爱你 那个人回 哦 宝贝儿 我也爱你 If I could, I'd buy you a casket then Gah A castle Damn auto correct Way to ruin a moment 如果我

发表于:2019-03-05 / 阅读(167) / 评论(0) 分类 艾伦脱口秀
学英语单词
antimagnetic steel
awnings
bagads
balsam of copaiba
bass -relief
Belanger's critical flow
biddeposit
biocommunities
bull index
calycine
Castner-Kellner process
cervical carina
changing volume
clinks
column bar test
combined steam engine and exhaust turbine installation
crystalloid
cuoxam lignin
cut something off
Dioscorea simulans
distinctive competence
distress priority call
diverging spherical wave field
eddy magnetism
elastic network
electrical thermal alloy
environment control
family Casuarinaceae
ferroxcube
fluoroethanol
forestine
furniture-making
glauconites
gyratory motion
half-shade polarizer
harum
hematonic
heterochlamydeous flower
high duty impeller
hight vacuum distillation
hook-shaped
inflammable freight
ISTJ
karacs
knock-on cascade
land use type
Lemaire Channel
lignin-proteinate
limits to importing national currencies
Mago-jima
maltase-glucoamylase
MINEX
misadaptation
misqueme
mitacs
moirneing
moletronic
multitouch
nematodesma
Niaradougou
p-places
penalty point
photomicrographic analysis
plifenate
pteropaedes
Pukaki Rise
qualitative spectrochemical analysis
quant suff
radula perrottetii
re-litigate
remote terminal unit
rotor short circuit
rule of equity
Sc.D.A.
secure kernel
sequence control statement
sequential lines
shaobing
Sheno
shipments and receipts
sicklily
slackjawed
squinched
SSCP services
strippeddown
syndesine
tackett
tax lot
telefragged
television-camera tube
tetrapus
Trostin
uk knot
ulcus mixtum
urobilinemia
vali
vortex cleaner
wagon destination
wallbanks
waughts
with whip and spur
yachtful