First,i'mnotfamiliarwithchinese,butiguessicanstillhelpu,RuDPandRuBPmeansRibuloseDiphosphateandRiBuloseBisphosphate,thesetwochemicalmoleculesarethesamethingbutwriteindifferentwaysforinEnglish,toshow"Two",Di-andBis-arebothvalidanswer.Therefore,RuDPandRuBParethesamething,apentosewithtwophosphatesgroupattach.Hopefullythathelpu