1. There are qualitative differences between the two products. 这两种产品存在着质的差别。
2. There are qualitative differences in the way children of different ages and adults think. 不同年龄的儿童和成人在思维方式上有着质的差异。
3. It combines quantitative variables and qualitative variables. 它结合了定量变量和定性变量。
4. Subsequently developed methods of recording and analyzing nerve potentials failed to reveal any such qualitative diversity. 后来发展的记录和分析神经电位的方法并没有揭示出任何这种质量上的差异。
5. Although qualitative variance among nerve energies was never rigidly disproved, the doctrine was generally abandoned in favor of the opposing view. 尽管神经能量之间的质量差异从未被严格否定，但这一学说普遍被放弃，相反的观点则被支持。
