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| série de données (Related data points that are plotted in a chart. Each data series in a chart has a unique color or pattern and is represented in the chart legend. You can plot one or more data series in a chart. Pie charts have only one data series) | |||
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data series : 10 do fraz, 4 tematyki |
| Marketing | 1 |
| Statystyka | 7 |
| Technologia informacyjna | 1 |
| Zasoby naturalne i ochrona dzikiej przyrody | 1 |