Not ignorance, but the ignorance of ignorance, is the death of knowledge. —— A N. Whitehead, British philosopher.

不是无知本身，而是对无知的无知，才是知识的死亡。——英国哲学家怀特海。

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The SECI model and the N organization model show four kinds of knowledge transforming pattern in the social organization.

从SECI模型和N型组织模型，揭示出社会组织的知识转换的四种模式。

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To the best our knowledge, our protocol is among the most efficient catalyst system for the N-arylation of N-containing heterocycles reported so far.

这是迄今为止最有效的含氮杂环的N -芳基化反应的催化体系之一。

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In any case, old Mother Earth can finally begin to relax in the secure knowledge that her medical needs are being addressed by the U.N. and ObamaCare.

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