题干
Come and see me whenever ________.
A：it is convenient to you
B：you are convenient
C：you will be convenient
D：it will be convenient to you
答案(点此获取答案解析）
A
Ba2＋(aq)＋SO(aq)的平衡常数KSP＝c(Ba2＋)·c(SO )，称为溶度积常数。