Ungakhetha kanjani okokugcina okubandayo kwamasampula akho ezokwelapha, izidakamizwa, ama-reagents, nezinye izinto ezizwelayo kukushisa.Ngemva kokufunda ngezansi ukuqhathanisa amafriji ezokwelapha kanye neziqandisi zasendlini, uzoba nombono ocacile okufanele ukhethe.Isiphetho: Izinga lokushisa elizinzile...
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