Вставить местоимения в приложения : 1 ancient egypt was the first country birds - domesticated pigeons were used for sending a way to give every letter and number a special code. 2 1843 was the year in samuel morse proposed a way to give every letter and number a special code. 3 it was morse's symbol code.. we can still find used today. 4 it was bell managed to register it first. 5 aleksandr popov from russia invention of the radio came before marconi's, did not patent it. 6 in 1983, the military project arpanet became available to universities and research finally gave birth to the internet.

ульяна7346    2   12.04.2019 19:11    1