Une frise chronologique apparaît le long d'une ligne qui part de droite à gauche, en biais. 1789 Révolution française Visuel : "La Liberté guidant le peuple" d'Eugène Delacroix (Musée du Louvre) À ...
During the past century chemists have developed efficient chemical reactions for converting fossil resources into a broad range of fuels and chemicals, and this can be considered one of the most ...
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