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| خط اساس | |||
| خط أساسي (In the printing and display of characters on the screen, an imaginary horizontal line with which the base of each character, excluding descenders, is aligned) | |||
| خط الأساس | |||
| Angielski tezaurus | |||
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| BL | |||
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base-line : 8 do fraz, 4 tematyki |
| Ekonomia | 1 |
| Hodowla zwierząt | 2 |
| Medycyna | 2 |
| Statystyka | 3 |