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Michael_Scott
Go to solution Solved by Falcor,

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Salut @Michael_Scott !

Je me rapelle d'un post qui posait la même question, je n'arrive plus à le retrouver. Je me rappelle que cette question était présente dans un QCM, mais que ce n'était pas une annale, est-ce ton cas ?

Si oui, sache que @josephix a totalement raison, il est impropre de parler de RI radioactifs, si la question est cependant "tous les RI proviennent de sources radioactives", là c'est faux on a des RI cosmiques.

 

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