Розмір відео: 1280 X 720853 X 480640 X 360
Показувати елементи керування програвачем
Автоматичне відтворення
Автоповтор
Bill Shokley, John Bardin and Walter Brattain invented transistor in 1948. The presenter should be fluent with these facts.
He said that
Bill Shokley, John Bardin and Walter Brattain invented transistor in 1948. The presenter should be fluent with these facts.
He said that