H. General - Prueba 79 - Incorrecto

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¡Incorrecto!

79. ¿Cuándo descubren los chinos la pólvora?

Respuesta correcta:

siglo IX

Imagen:  Drawing of an early Mongolian soldier lighting a rocket. Author: NASA. This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)

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