Acertijos de seguridad e incendios (12.30)

2016-12-30View Original

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1. Desherbar al mediodía (proyecto de tarea) 2. Apilar leña para apagar el fuego (reacción química) Respuesta correcta: Trabajo en altas temperaturas, combustible auxiliar

Reply #22016-12-30

1. Trabajo en altas temperaturas 2. Agente oxidante

Reply #32016-12-30

1. Trabajo en altas temperaturas 2. Acelerador de combustión

Reply #42016-12-30

1. Trabajo en altas temperaturas； 2. Acelerante de la combustión

Reply #52016-12-30

1. Trabajo en altas temperaturas 2. Agente oxidante

Reply #62016-12-30

Trabajo en altas temperaturas------------Combustible

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Acertijos de seguridad e incendios (12.30)

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