A. 认知阶段 B. 联结阶段 C. 评价阶段 D. 自动化阶段
A. many of whom B. many of them are C. many of which D. many of them
A. 不同的学习结果 B. 学习层次的高低 C. 学习情境的繁简 D. 学习水平的优劣