difficulty index
短语词组
- task difficulty index 任务难度指数
- difficulty index of caving 垮冒难度指数
- item difficulty index 试题难度指数;难度指数;难易度指标
- Weaving Difficulty Index 织造难度系数
- operative difficulty index 操作难度
- Difficulty And Differentiation Index 难度区分度
- Difficulty index for apple 难易度指数
- index difficulty weighting 指标难度赋权法
- index of difficulty 难度指数 返回 difficulty index