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Ithawula lokugeza izingane ligoqwe lonke lithambile futhi likhululekile
1. awukwazi ukukhokhela ibhola, ungawisi izinwele, ungafi
2. ithambile, iyamunca
3. akukho ukunambitheka, akukho fluorescence
4. Hlangana nezindinganiso zezingane ezisanda kuzalwa ze-Class A
