Прочитайте текст и выберите утверждение соответствующее содержанию текста Electricity complete chang...: ответ на тест 606976 - Английский язык

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Electricity complete changed communications. Once it was discovered that аn electric current would flow along a wire, it seemed possible that it could be used for messages. As long as two places were connected by a wire electric currents could be sent along it. They could be sent with the speed of light. The question was how could electric current make words?