“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	pulse light curve pulse manifestation pulse measurement pulse mode pulse noise pulse nulling pulse nulling phenomenon pulse on the back of the wrist pulse oximetry pulse peak power pulse period pulse phase noise tester pulse plotter pulse polarography pulse position modulation and demodulation pulse power pulse power supply pulse pressure pulse process pulse processing and shaping pulse profile pulse propagation pulser pulse radar pulse radio altimeter

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。