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4 jul 1972 año - Scantron
Descripción:
The Scantron made it easier fr teachers to grade multiple-choice exams, hence saving them countless hours.
Añadido al timeline:
Educational Technology
By
Dayanira Feliciano
14 nov 2017
0
0
325
fecha:
4 jul 1972 año
Ahora mismo
~ 51 years ago
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