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Salt ____ when it is put in water. The mixture is called a solution.
A、solves
B、disappears
C、mixes
D、dissolves
【正确答案】：D
【题目解析】：solve 解决；disappear 消失；mix 混合；dissolve 溶解句意： 盐放在水里就会溶解。这种混合物叫做溶液。