FOR UNIVERSITY ENTRANTS
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Information, cognitive materials on the popularization
of natural sciences and mathematics
∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼∼
Information, cognitive materials on the popularization
of natural sciences and mathematics