- 問題詳情:下列有關元素及其化合物*質的比較正確的是 A.原子半徑:F<O<Al B.穩定*:H2O<PH3<NH3 C.**:H2CO3<H2SO4<H3PO4 D.鹼*:LiOH<NaOH<Al(OH)3【回答】A知識點:物質結構元素週期律題型:選擇題...
- 9941
- Themareiscarryingafoalnow.You'llhavethefoalandthehundredsilverducats!Veterinarianssaysuchafoalisrare,butnotunknown.Ourneighbour'sfemaledonkeyiscarryingafoal.Heshowedmefoalafterfoal,whilemyfavoriteponydrowsedinthesunsomedistanceaway.No,that'snottru...
- 10177