题目内容
Practice is the only _______ to testify truth, while learning of theory eventually serves practical application.
A. evidence B. element C. criterion D. contrast
C 【解析】句意:实践是检验真理的唯一标准,而理论学习最终为实践应用提供理论依据。evidence证据,证明;element元素,要素;criterion标准,准则;contrast对比,差别。根据句意可知应选C。
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