题目

下列各组物质中，物质之间通过一步反应就能实现图示变化的是 （）物质编号物质转化关系abcd①NONO2N2HNO3②Na2ONa2O2NaNaOH③FeCl2FeCl3FeCuCl2④Al2O3NaAlO2AlAl(OH)3 A . ①②③ B . ③④ C . ①③④ D . ②④ 答案：B—Did you do last weekend?— Not really, but I visited my sister.A. anything interesting B. something interestingC. interesting anything D. interesting something