| 11. | A working knowledge of the lessons of history is a necessity for survival.
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| 12. | One of the Americans has a good working knowledge of the Italian team.
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| 13. | Many of them presuppose a working knowledge of genealogy.
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| 14. | Harvard Business School featured the study on its " Working Knowledge"
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| 15. | Land Offices should be frank about their working knowledge.
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| 16. | He graduated with a working knowledge of English, French, and German.
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| 17. | He speaks German and English fluently, has a working knowledge of French.
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| 18. | A working knowledge of the materials involved is required.
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| 19. | To see that he is wrong requires a working knowledge of special relativity.
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| 20. | Intimate working knowledge of Wikipedia rules is a must.
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