SBA的知识精选

“SBA”可以造什么句,SBA造句
PreparationofMicro-MesoporousSilicaSBA-15StudiesonSBA-15Host-RhodamineBGuestNanocompositeMaterialandPhenylatingSBA-15Material;Studieson(SBA-15)-SulfideHost-GuestNanocompositeMaterialStudyonSBA-16Suppo...
如图所示,四面体SABC中,,∠SBA=45°,∠SBC=60°,M为AB的中点.则BC与平面SAB的夹角为(...
问题详情:如图所示,四面体SABC中,,∠SBA=45°,∠SBC=60°,M为AB的中点.则BC与平面SAB的夹角为()A.30°                     B.60°C.90°                     D.75°【回答】B知识点:...
热门标签