概念效度;
The validity of inferential form is the key conception of logic.
推理形式的有效性是逻辑学的核心概念.
The establishment and validity of civil juristic act are two different concepts.
民事法律行为的成立与生效是两个具有本质差别的概念.
简答网 · 中考英语
简答网 · 高考英语
简答网 · 四六级英语