selectivity characteristic

例句：

1. 1. The study found that the selective breeding of animals had a significant impact on their genetic makeup.
   研究发现，动物的选择性育种对其遗传构成产生了显著影响。
2. 2.In the process of selecting materials for a new product, companies often need to consider factors such as cost and quality.
   在为新产品选择材料的过程中，公司通常需要考虑成本和质量等因素。
3. 3. The researcher emphasized the importance of selecting appropriate materials for the experiment based on the specific requirements.
   研究人员强调了根据特定需求选择合适材料进行实验的重要性。