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ÂÈÊÒÎÐÈÍÀ ÎÍËÀÉÍ
Âîïðîñ Òåõíè÷åñêóþ âîçìîæíîñòü ñîçäàíèÿ ÒÀÊÈÕ òðàíñïîðòíûõ ñðåäñòâ îáîñíîâàë Âëàäèìèð Ëåâêîâ â 1925 ãîäó â ðàáîòå "Âèõðåâàÿ òåîðèÿ ðîòîðà".
Ñëó÷àéíûé âîïðîñ âèêòîðèíû îíëàéí: Àíåêäîò. Êîíêóðñ íà ñïàñåíèå Ïèçàíñêîé áàøíè âûèãðàëè ïðîèçâîäèòåëè... ×åãî?
Êàêîå âòîðîå íàçâàíèå ó ðàñòåíèÿ àñïàðàãóñ?
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