4.溶液是自然界中常见的物质.下列有关溶液的说法正确的是 A.溶液的上层浓度小下层浓度大b.物质在溶解过程中常伴有放热或吸热c.溶液中 Template




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tomski4.溶液是自然界中常见的物质.下列有关溶液的说法正确的是 a.溶液的上层浓度小下层浓度大b.物质在溶解过程中常伴有放热或吸热c.溶液中 coloring