“题目难度指数”的概念、定义、翻译、参考文献-科学参考

单词	题目难度指数
释义	题目难度指数 Encyclopedia 理学【基本概念】释 item difficulty index题目难度指数测验题目难易程度的度量指标。
随便看	effective curve effective cutoff effective cutoff frequency effective cycle effective damping constant effective definition effective degree effective demand effective density of dense medium suspension effective derivation effective descriptive set theory effective diameter of objective effective Diophantine approximation effective discharge effective distance effective divisor effective domain effective dose effective elastic thickness effective enumeration effective equivalent dose effective equivalent dose rate effective error mean square effective field effective field theory

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。