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1 unflagging alertness
Englsh-Russian aviation and space dictionary > unflagging alertness
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2 alertness
См. также в других словарях:
Burton Dreben — Burton Spencer Dreben (1927, Boston 1999) was an American philosopher specializing in mathematical logic. A Harvard graduate who taught at his alma mater for most of his career, he published little but was highly influential as a teacher and as a … Wikipedia
