TOEFL Listening: ETS-TOEFL听力机经 - P5SP91_P4KJ5RMGHP$

What point does the professor make about the Kinetoscope? A. It was the first device ever invented by Thomas Edison. B. It could be used by only one person at a time. C. If showed longer films than the films first made by the Lumiere brothers. D. The Lumiere brothers purchased the Kinetoscope from Thomas Edison.