Strategy theory of any country is none invariable.

任何国家的海军战略理论都不是一成不变的。

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Second language learning strategy theory is an important theory of second language acquisition.

第二语言学习策略理论是第二语言习得的一个重要理论。

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The thesis mainly applies SWOT analysis, customer relation theory, personnel promotion strategy and pricing strategy theory etc.

本文主要应用了SWOT分析法、客户关系理论、人员促销策略理论和定价策略理论等。

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In theory, this strategy gives middle-aged plan members longer exposure to upward movements in the stockmarket, while safeguarding them against the risk of a sudden market fall.

ECONOMIST: Pensions and the d-word

In other words, Modern Portfolio Theory as an investment strategy is fundamentally incomplete.

FORBES: Is Modern Portfolio Theory Out-of-Date?

First, subtraction is a ground level strategy, not a high altitude theory, and is what people want me to talk about in speeches and seminars.

FORBES: How to Remove Activities From Your Life and Increase Productivity