比例效应

例句：

1. 1. The study found that the ratio of male to female students in the class was not equal.
   研究发现，班级中男生和女生的比例并不相等。
2. 2. The company's decision to increase its workforce by a certain percentage is expected to have a positive impact on its performance.
   公司决定以一定百分比增加其员工数量，预计将对其业绩产生积极影响。
3. 3. The experiment showed that the ratio of sugar to water in the solution had a significant effect onthe taste of the drink.
   实验显示，溶液中糖与水的比率对饮料的口感有显著影响。