Fara gwaji yana nufin yin tambayoyi da yawa.Wane abu ake bukata?Wadanne samfurori ake amfani dasu?Wadanne yanayi ne ya zama dole, misali, girma?Yaya tsawon lokacin duka aikace-aikacen?Dole ne in duba gwajin a karshen mako, ko da dare?Tambaya guda daya ana mantawa da ita, amma ba kadan ba...
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