下列物质按碱性由弱到强排列顺序是（）
A.OH-＜HPO42-＜NH3＜HSO4-＜H2OB.HPO42-＜OH-＜NH3＜H2O＜HSO4-C.HSO4-＜H2O＜HPO42-＜NH3＜OH-D.HPO42-＜OH-＜H2O＜NH3＜HSO4-正确答案：HSO4-＜H2O＜HPO42-＜NH3＜OH-