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1998 - 2001 гг. период окончания сроков региональных программ информатизации систем среднего образования, подготовленных 1998-1999 годах. (4 jan 1999 ano – 10 ago 2001 ano)

Adicionado na linha do tempo:

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ByKaterina
15 nov 2017
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810

Data:

4 jan 1999 ano
10 ago 2001 ano
~ 2 years and 7 months
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