柯 维茨整理了这些观点，推导出数学公式，使多样化达到最优。

Markowitz formalised these ideas and drew up the mathematical formulae to optimise diversification.

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俄罗斯在过去利用能源进行敲诈的卑劣手段使许多欧洲国家寻求多样化的能源供应方式，尽管这来得太晚。

Russia’s clumsy use of energy blackmail in past years has spurred many European countries to diversify, albeit belatedly.

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美国的学院也在不断扩招外国留学生，这不仅仅是为了使在校学生群体更多样化，还为了筹集更多的基金。

Schools in the United States have stepped up recruitment of foreign students, to diversify their student bodies, as well as to boost their funding.

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