1. Mbere yo kuyikoresha, banza urebe niba buri gikoresho cyumukora urubura gisanzwe, nko kumenya niba ibikoresho bitanga amazi ari ibisanzwe, kandi niba ubushobozi bwo kubika amazi bwikigega cyamazi ari ibisanzwe.Muri rusange, ubushobozi bwo kubika amazi yikigega cyamazi bwashyizwe muruganda.2. Nyuma yo kwemeza ...
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