名词
中文翻译：有效性理论
同义词：
['efficacy theory', 'efficiency theory']
例句：
-
1. The effectiveness of this newdrug in treating cancer is still being studied.
这种新药治疗癌症的有效性仍在研究中。
-
2.The efficiency of the new system has beenproven to be significantly higher than the oldone.
新系统的效率已被证明比旧系统高得多。
-
3. In the field of education,the efficacy of technology in enhancing learning outcomesis a topic of ongoing debate.
在教育领域，技术在提高学习成果方面的有效性是一个持续讨论的话题。