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Those innovations, upon which virtually all aspects of contemporary society now depend, were possible because the United States then led the world in mathematics and science education.

当代社会几乎所有方面都依赖这些创新，这些创新之所以成为可能，是因为于当时美国在数学和科学教育方面处于世界领先地位。

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The Storyline will provide foundation material upon which all other project activities will develop.

UNESCO: UK National Commission for UNESCO - ��Drifting Apart�� which brings together the Global Geopark Network in the Northern Peripheries and Arctic Region launches new website

Grim economic news has not dampened the entrepreneurial spirit upon which this country was founded.

FORBES: For American Workers, It's The Age Of Independence

After all, he is the source of the largesse upon which their lives are increasingly dependent.

FORBES: Do Unemployed Americans Suffer From The "Stockholm Syndrome?"