soale 58) ba tavajoh be manabee mojud faravardeye Plt tak vahedi ya haman singel donor Plt hade aghal Plt mosavi ya bishtar a 3 * 10 10 mibashad va PH baraye Plt bayad hadeaghal 6.2 bashad , agar kamtar az in PH bashad Plt ha faal shode va dar natije miane Plt ha dar girande kahesh peyda khahad...