This paper from the concept of green trade barriers.

本文通过从绿色贸易壁垒的概念。

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"We fully retract this paper from the published record," Lancet editors said in a statement Tuesday.

“我们从发表记录中完全撤消了该论文”，《柳叶刀》编辑周二在一份声明中说。

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Therefore, this paper from the perspective of community education concerned on the problem of continued education of the urban vulnerable groups.

因此，本文从社区教育的角度研究关注城市弱势群体继续接受教育问题。

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Much of this paper money was used by business speculators to buy land from the government.

VOA: special.2009.01.01

And what he could show was that it could be expressed, this is a picture from his 1994 science paper, in that e coli, and it is going to fluoresce green.

他证明了它可以被表达，这是1994年science文章里的一张图，在这大肠杆菌里，它有绿色的萤光。

麻省理工公开课 - 化学原理课程节选

This process produced paper from cloth, straw, wood or the bark of trees.

VOA: special.2009.01.26

This paper from Lawrence Livermore describes what can be seen just by looking at network flow data.

FORBES: Uncovering the unknown threat via beaconing detection

In it, Dana points to this paper from the National Center on Education and the Economy.

FORBES: Reforming Teacher Pay to Attract New Teachers

This paper from Arthur D Little and Ericsson (who, err, make broadband equipment so might safely be assumed to have an interest in the matter) claims that there is such an effect.

FORBES: Does High Speed Broadband Increase Economic Growth?