[数] 加性逆元素

AGRICULTURE REPORT - Jojoba: Not Your Usual Oilseed CropBy Mario Ritter Broadcast: Mon, 3 Jul 2006 16:00:00 UTC I'm Shep O'Neal with the VOA Special English Agriculture Report. Jojoba plants We have a

发表于:2018-12-07 / 阅读(93) / 评论(0) 分类 2006年慢速英语(七)月

作文和听力,阅读一样,可以早做准备。现在流行的复习方法是从下半年复习,甚至是考试前3个月才开始复习。复习的教材无一例外的是考试虫系列的万能作文:背一二十篇作文模式,背一二

发表于:2018-12-12 / 阅读(63) / 评论(0) 分类 英语学习方法

Pesticide Additive Could Be One Culprit in Bee Deaths 农药添加剂是蜜蜂死亡的一大诱因 Springtime is flower season. And that includes some 90 million almond trees in California. It's the largest pollination event in the U.S.and beekeeper

发表于:2018-12-24 / 阅读(75) / 评论(0) 分类 2017年Scientific American(二)月

And that's the difference between problems that are additive, like CO2, 这个就是可添加性问题,像二氧化碳问题, which we go slowly up and then we tip, and problems that are depletive, in which we lose what we have, which oscillate, 慢

发表于:2019-01-03 / 阅读(83) / 评论(0) 分类 TED演讲科技篇

This is Scientific American's 60-Second Science. I'm Christie Nicholson . Got a minute? The lure of gambling clearly comes from the chance of winning. But how exciting is it to almost win? A study in the February 12th issue of the journal Neuron look

发表于:2019-01-08 / 阅读(119) / 评论(0) 分类 Scientific American(二)月

This is Scientific Americans 60-Second Science. Im Sophie Bushwick. Got a Minute? What's the best way to find out if an unknown mixture contains a specific substance, like an environmental contaminant? You could use an expensive, bulky gas chromatogr

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 Scientific American(八)月

在中国,普通话作为官方语言的地位日益巩固。然而在英国,为什么大多数的英国人不遵循标准的发音[standard pronunciation or RP(received pronunciation)],却喜欢操着一口地方口音呢?难道英国人不认

发表于:2019-01-11 / 阅读(78) / 评论(0) 分类 实用英语

Gold, Oil Prices Up as Investors Seek Safe Haven 投资者寻求避险:黄金、石油价格上涨 NEW YORK The up-and-down prices of oil and gold mirror the unsettled world situation, and both reflect the economic squeeze most nations currently face

发表于:2019-01-14 / 阅读(83) / 评论(0) 分类 VOA标准英语2016年(三月)

1. The work that Tim Pons and his colleagues published last week is basic research into the portion of the brain, the cortex, that one scientist says is responsible for all the interesting things we do. 剖析:在这个长句中, 共有两个定语从

发表于:2019-01-17 / 阅读(126) / 评论(0) 分类 雅思英语

Last year in the US, they helped Amazon prepare and ship all the products required for Cyber Monday, 去年在美国,机器人帮助亚马逊发货,以应对网络星期一带来的 the annual peak of online retail. 年度线上零售消费高峰。

发表于:2019-01-18 / 阅读(79) / 评论(0) 分类 TED演讲国际问题篇

Cleaning and sorting plastic made out of multiple polymers can be relatively expensive, 清理和将多种聚合物制成的塑料进行分类的成本相对昂贵, especially if it is used to make low value products such as packaging. 尤其是这些

发表于:2019-01-26 / 阅读(108) / 评论(0) 分类 经济学人科技系列

Science and Technology Three-dimensional printing An image of the future 科技 3D印刷 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用 U

发表于:2019-01-26 / 阅读(101) / 评论(0) 分类 经济学人科技系列

At this rate, scientists will have to come up with a better description for the tomato than mere 'superfood'. While it has long been credited with cutting cholesterol and preventing some cancers, the fruit now appears to have two more healthgiving be

发表于:2019-02-06 / 阅读(81) / 评论(0) 分类 阅读空间

Heres one way to make sure you have perfect attendance in your class: 让你把全部注意力放在课堂上只有一种方法: Meet Pietro Boselli: Obviously, hes ridiculously good-looking. 来见见我们的彼得罗博塞利:看吧看吧,他真

发表于:2019-02-06 / 阅读(91) / 评论(0) 分类 阅读空间

You know how it goes: youre trying to talk to your grandchildren, but theyre constantly checking their beeping phones. Im listening . . . they insist. Except you know only too well theyre not. At home, over dinner, you want to catch up with your husb

发表于:2019-02-07 / 阅读(112) / 评论(0) 分类 阅读空间

The 2015 list of the greatest emerging technologies was recently published by Bernard Meyerson, chief innovation officer of IBM and chair of the World Economic Forums Meta-Council on Emerging Technologies. 最近IBM的首席创新官兼世界经济论坛

发表于:2019-02-17 / 阅读(100) / 评论(0) 分类 阅读空间

和同事聊天时,她突然问我:当时,他是怎么向你求婚的,浪漫吗?我一愣,随即笑了:我老公是很木讷的人呢,你说会浪漫吗?虽然这样说,我心里却泛起甜丝丝的感觉来。他确实从来不浪漫,他的求婚没有

发表于:2019-02-18 / 阅读(96) / 评论(0) 分类 英语美文

Over the last 13 years, investors have experienced some of the largest financial bubbles in history. Asian currencies rose and fell, technology and Internet shares suffered staggering losses, oil and other commodities rode a wild roller coaster, and

发表于:2019-02-18 / 阅读(70) / 评论(0) 分类 阅读空间

一. 上升增长1.add up to 增加了eg. The total amount of added up to 14 billion pounds(14%) in 1994. 2. to jump to / to soar to 一跃达到/ 猛增到 eg. The total working days lost soared to 10 million in 1979. 3.an increase of ab

发表于:2019-02-18 / 阅读(113) / 评论(0) 分类 四六级写作指导

Law of Supply Demand: This is the founding block of economics. Whenever supply of something increases its price decreases and whenever supply decreases price increases. Thus, when you have excess production of corn, food prices decrease and vice vers

发表于:2019-02-25 / 阅读(86) / 评论(0) 分类 英文语法词汇
学英语单词
11-oxy-steroid
aeroflot
Akashic Records
aleukemia hemorrhagica
anti-depression
anti-drip
apicoalveolar
barbula arcuata
Boulby
breuel
brier-wood
bring something to the touch
claim letter
clonalities
cock of the wood
congenial
cornua superius
customs authority
cyclic shear
cylinder bolck
deceivableness
deck plan
dietary defect
Dionda
document entry subsystem
drive sampling
elena
face painter
fielder
flag-feather
floppy base
flow field visualization test
gassest
gender reassignment
gonnies
halftone picture
hedger
high limit of tolerance
Illinois Waterway
integrated optics (io) strip guide
interactive software
JAL
k-r
kanji utility
Laurel Grove
laying battery
loss of import duty risk
low-affinity
lubricating oil system
lubrication gap
Lucea
make on stranger of
metaclassifier
meteorologic instrument
microwave zone position indicator
monopolar cautery
multivalent repression
Nihongo
nuclear resonance thermometer
number seventeen
nutrient cycling
nutting truck
observation range
open-coils
order cost
out-of-balance force
overuniform
Peranakan
perxenic
picture output signal
piston flow
pooin'
post mortem time
Praesepe
pulsator jig
punkas
radicalno
recreative
Red Army man
reeling drum
reference orbit
repeated puncture
Sedlec Prčice
seguramente
semibilinear functional
shorter
single plunger plastic injection moulding machine
skales
speak the worst something
stuporous depression
symbology
tacca integrifolia ker-gawl
the product of
tricholimnas sylvestris
tuning fork wristwatch
two doors down
universal control automation
universologists
unsubstantiated hypothesis
visceromegaly
wait_flags
zero phase sequence-relay