题目: Yesterday was such a()day we decided to go for a drive.A.gloriousB.dynamicalC.avenueD.invitation 答案: 参考答案:A
题型:选择题 20℃时,硝酸钾饱和溶液的溶质质量分数为24%,下列方法能使溶液中溶质质量分数发生改变,但仍保持饱和状态的是( )A.20℃时,加2克水B.20℃时,加1克硝酸钾C.20℃时,恒温蒸发5克水D.降温到10℃ 查看答案