离子选择(性)电极

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发表于:2018-12-01 / 阅读(186) / 评论(0) 分类 用Mp3背六级单词

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(184) / 评论(0) 分类 Scientific American(十二)月

[00:00.00] unit 14 Mainly Revision [00:34.51]Ann___(not,watch)TV last night.The children__(go)to the farm last Saturday. [00:47.86]The boys__(meet)after school yesterday afternoon. [00:53.42]Mr Turner__(say)sorry to the conductor on the train because

发表于:2018-12-10 / 阅读(242) / 评论(0) 分类 (人教版)初中二年级上册

ROBERT SIEGEL, HOST: There are museums, and then, there are wonderfully specific museums. We're talking about such institutions as the American Toby Jug Museum, the German Watering Can Museum and, of course, the U.S. National Tick Museum. All of thes

发表于:2018-12-18 / 阅读(131) / 评论(0) 分类 2017年NPR美国国家公共电台6月

Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens,found in the mud at Oyster Bay,Virginia,has been discovered to transfer electrons directly onto an electrode

发表于:2018-12-18 / 阅读(141) / 评论(0) 分类 有声杂志阅读

Time for M.I.T.s Clean Energy Prize. The annual competition gives teams of university students a chance to compete for $200,000 to kick-start their new clean energy business. One finalist designed a compression technology for natural gas wells that w

发表于:2019-01-02 / 阅读(355) / 评论(0) 分类 60秒科学

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(161) / 评论(0) 分类 Scientific American(八)月

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? If you're too tired to think straight, it might be because parts of your brain are already asleep at the wheel. A team of neuroscientists from Washington State Unive

发表于:2019-01-08 / 阅读(121) / 评论(0) 分类 Scientific American(十一)月

Using the Right Article What word appears most often in English? It's the, also known as the definite article. Its partner, the indefinite article a, is also among the top 10 most frequent words in English. According to Professor Elka Todeva of the S

发表于:2019-01-12 / 阅读(126) / 评论(0) 分类 2016年VOA慢速英语(三)月

李华正在兴致勃勃地给Larry将她去看医生的经过,没想到被Larry泼了一盆冷水。李华今天要学两个常用语,TMI和PDQ 。 LL: Oh, Li Hua, that is really TMI. I'm sorry you had to go to the doctor, but I really don't wan

发表于:2019-01-15 / 阅读(101) / 评论(0) 分类 美国之音《流行美语》

For our 10th anniversary my wife and I vacationed in Hawaii, where we went snorkeling. After an hour in the water everyone got back on the boat, except for one beautiful young woman and me. As I conti

发表于:2019-01-29 / 阅读(143) / 评论(0) 分类 趣味英语

你焦虑吗小心抑郁症哦! Most psychotherapists would agree that depression is anger and sadness that has been repressed. And it can lead to a state where the afflicted feel there is nothing they can do to change their situation. A hopelessne

发表于:2019-02-01 / 阅读(119) / 评论(0) 分类 实用英语

It seems like everyone is using Twitter these days. You know, sharing little messages with each other on phones and computers. It turns out that all these little messages, if you look at them all at once, become an easy way to find people, news and t

发表于:2019-02-05 / 阅读(108) / 评论(0) 分类 英语万花筒

According to Ric Edelman, author of Ordinary People, Extraordinary Wealth, the purpose of a rsum is not to get a job, it's to get an interviewyou will get the job. A rsum should not list all your skills, but rather tease the employer with your achiev

发表于:2019-02-06 / 阅读(139) / 评论(0) 分类 实用英语

Because writers have a various ways of writing, a variety of reasons can cause writer's block. When you are blocked, consider these causes and try the strategies that sound most promising. IF You have attempted to begin a paper without doing any prel

发表于:2019-02-13 / 阅读(143) / 评论(0) 分类 实用英语

natality 生育 fertility 生育率 fecundity 生育能力 birth rate, natality rate 出生率 births 出生人数 parity 胎次 premature birth 早产 life birth 活产 stillbirth 死产 birth peaks 出生高峰 mortality 死亡 mortality rate 死亡率

发表于:2019-02-18 / 阅读(147) / 评论(0) 分类 实用英语

The purpose of a letter of applicationis to help the applicant obtain the job he is interested in. It should state clearly what position the applicant wants, and should tell what his abilities are and what he has to offer. It should provide a quick,

发表于:2019-02-18 / 阅读(162) / 评论(0) 分类 实用英语

1. Tell me about yourself! 对策:Keep your answer to one or two minutes; don't ramble. Use your resume summary as a base to start from.. 2. What do you know about our company? 对策:Do your homework before the interview! Spend some time online

发表于:2019-02-18 / 阅读(205) / 评论(0) 分类 实用英语

有人常会觉得小孩子学语言学得比大人快,为什么呢?因为小孩子学语言不像我们死记文法,苦背单字。他们就是用所谓的pick up,看在什么场合,别人用什么字,就一个一个把它记下来。这样

发表于:2019-03-05 / 阅读(174) / 评论(0) 分类 英语口语

Larry告诉李华他连续几天给他哥哥打电话,可是总也找不到他。 LH: Larry, 你那么急着找你哥哥,有要紧的事吗? LL: No, not really. I just want to chit chat. LH: Chit chat是什么意思啊? LL: To Chit Chat is to t

发表于:2019-03-12 / 阅读(238) / 评论(0) 分类 英语口语
学英语单词
adjustage
air twisting
amphiaster
announced
anticonvulsive drug
armature controlled motor
arrango
avariciousnesses
b.smith
Beampingaratra
biformis
binoculars-camera
black catechus
blastoderm
cephalomeres
changed round
clomoxir
closed-loop transfer functions
collectings
compact crown
conical transition
constant-density
customer discrimination
dancerly
deep freezer
differential modulation
double bottom compartment
dxc
economics of productive forces
escape angle
ethyl arsenate
fetch bit
file data
financial world
fondamentale
fornicatoria
four-way pipe
Gamova, Mys
halberdiers
Hanworth
hate mail
heliation
high moisture grains
hollandite
hollinghursts
Imerslund
inchoative mood
jutter
Kisosi
lease-back
local noise compensation
Lueckisporites
lug connection
M. M.
magnetograms
man tramming
measure of biotic control
mens rea
meta-analysis
Mirskoy
numerical control science
office speaker
order Lycopodiales
overcorrects
paper-filter
pieces together
point dew
primacy of planning
prime beef grade
Query's serum
reel control mechanism
remanence magnetization
schrijvers
schurl
sealed dust-exhaust system
self stimulation
shamanesque
ship off to
shorted turns indicator
solar-power
sporuliferous
stirling asymptotic formula
sucking spears
super-group
superficial cell
svo language
sweatshirted
temper rolled coil
thanks a ton
Thepha(Ban Thepha)
thermionics
thymoloform
tip-offs
unreke
upper elevator screw bushing
video adaptor
vivat
waste retrieval system
watch cases
well killing job
wind agency
zero visibility