题目

 _____, the great mother, in order to save her sick child, kept waiting for four hours in the heavy snow. A. It depends                     B. Take it easy C. Believe it or not       D. It is OK 答案：C下列图象反映的变化规律与其对应操作不相符的是A.向氯化钠的饱和溶液中加入氯化钾B.向灼热的赤铁矿中通入COC.向等质量的Al和Mg中加入足量的等质量等溶质质量分数的稀盐酸D.将饱和的氯化钠溶液恒温蒸发水