名词
中文翻译：有效性问题同义词
同义词：
['Validity issue', 'validity problem']
例句：
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1. The validity of the experiment was questioned by many experts.
许多专家质疑了实验的有效性。
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2. The validity of the study is still under debate.
该研究的有效性仍在辩论中。
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3. The validity of the test has been questioned due to its low reliability.
由于其低可靠性，测试的有效性受到了质疑。