题目

一定能在下列溶液中大量共存的离子组为 A．含有大量Fe2＋的溶液：Na＋、NH4+、ClO－、SO42－ B．含有大量AlO2－的溶液：Na＋、K+、NO3－、CO32－ C．含有大量氨水的溶液：Ca2+、Mg2＋、Ba2＋、NO3－ D．含有大量NO3－的溶液：H+、I－、SO42－、Cl－ 答案：BThere ______ a match this Sunday. 　 [     ]A. is going to have B. is going to has C. is going to be D. are going to