题目

下列表格中有关物质的分类对应正确的一组是（ ）碱盐电解质混合物 A纯碱小苏打BaSO4盐酸 B烧碱食盐NH3•H2OCuSO4•5H2O CKOHCaCO3醋酸水玻璃 DNH3Na2S明矾磁性氧化铁 答案：CA warm thought suddenly came to me ________ I might use the pocket money to buy some flowers for my mother’s birthday.A．ifB．whenC．thatD．which