配对值,对偶值

paired value的用法和样例：

例句

The authors investigate the relation between the growth and the boundary value of functions, and discuss the duality of these spaces.作者研究了它们的增长性与边界值的关系以及这些空间相互之间的对偶关系，所用方法和技巧与单复变数有不少区别。

Vitality of your voice

Vitality of your voice Do you remember the most boring thing about a boring teacher? Wasn’t it the voice that 1) droned on and on with little evidence of interest much less 2) enthusiasm. Think abou

发表于:2018-11-28 / 阅读(105) / 评论(0)

疯狂英语2003年

SSS 2008-09-29

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. We humans love a good story. We tell stories to entertain, to inform, even to pass the time. And weve been telling tales for, oh, the past 50,000 years.

发表于:2018-12-24 / 阅读(53) / 评论(0)

Scientific American(九)月

Palestinian official expects vote on bid of UN recognition at year- end

Palestinian official expects vote on bid of UN recognition at year- end RAMALLAH, Sept. 28 (Xinhua) -- A senior Palestinian official expected on Friday that the vote in the UN on the Palestinian bid of recognizing the state of Palestine as a non-memb

发表于:2019-01-08 / 阅读(41) / 评论(0)

英语新闻

VOA标准英语2011--Palestinians Demonstrate in Support of U

Palestinians Demonstrate in Support of UN Membership Bid Palestinians across the West Bank have been demonstrating this week to show support for statehood. The display comes ahead of a speech Friday by Palestinian leader Mahmoud Abbas in which he is

发表于:2019-01-13 / 阅读(32) / 评论(0)

VOA标准英语2011年(九月)

Alzheimer's Research

24 关于阿尔茨海默病的研究 DATE=3-20-01 TITLE=SCIENCE IN THE NEWS #2116 - Alzheimer's Research BYLINE=Jerilyn Watson VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Sarah Long with Sc

发表于:2019-01-30 / 阅读(68) / 评论(0)

科技之光

Speech-recognition software

At a recent Sacramento PC User's Group meeting, a company was demonstratingits latest speech-recognition software. A representative from the company was just about ready to start the demonstration and asked everyone in the room to quiet down. Just th

发表于:2019-01-30 / 阅读(96) / 评论(0)

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