完工工程外观：如果差异可以控制在获得批准样本范围的一半，可以接受相邻组件在外观上微小的变化。
C. appearance of Finished Work: Variations in appearance of abutting or adjacent pieces are acceptable if they are within one-half of the range of approved Samples.
由于本研究选择影响态度形成的变量很单一，而且调查的样本范围有限，所以要对这一课题有一个客观全面的了解，需要我们进行长期的、更大范围的后续研究。
Due to the simplex variable chosen in the research and the limited survey samples, a long-term and further study should be conducted to help us understand the subject comprehensively and objectively.
皮尤研究中心对全国范围内具有代表性的1807名父母组成的样本进行了调查，发现课外活动反映了育儿方式的差异。
Extracurricular activities reflect the differences in child rearing in the Pew survey, which was of a nationally representative sample of 1,807 parents.
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