电极座

零距离美语会话[文化风俗差异]Lesson 5:Did you tip the bellboy

Five Did you tip the bellboy? 你付小费给那个服务生了吗？ 1 Introduction A It is the custom to give tips to waiters in restaurants and taxi drivers. 在餐馆给服务员小费、给的士司机小费被认为是习俗。 B It is also American custom when visiting friends t

发表于:2018-11-30 / 阅读(99) / 评论(0)

零距离美语会话

SSS 2011-12-30

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(87) / 评论(0)

Scientific American(十二)月

发现可以给手机充电的细菌

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(60) / 评论(0)

有声杂志阅读

2010年麻省理工学院清洁能源奖揭晓(有声)

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(264) / 评论(0)

60秒科学

SSS 2008-08-01

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(72) / 评论(0)

Scientific American(八)月

Best Tech Writing Tip Ever 曾经最好的科技写作技巧

I once read an essay by Joseph Epstein in which he describes the glee and suspense in watching a stranger read his essay． Its happened to many novelists too the coincidental （dreamed－about） situation where you encounter a stranger reading pag

发表于:2019-01-06 / 阅读(69) / 评论(0)

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学英语单词

access parent

AMPT

angle of track

arisaema heterophvllm bl.

Arresin

atm transfer capability(atc)

attendancy

bf, bf.

Brown Vs.Board of Education

career school accreditation

central statistical office