试题题干
Filling Blanks: You are to fill each blank with ONE appropriate word.
The i+1 formula means input that contains 
that are slightly above the learners' present level.
参考答案
试题解析
i + 1公式表示包含略高于学习者当前水平的结构的输入。
Filling Blanks: You are to fill each blank with ONE appropriate word.
The i+1 formula means input that contains that are slightly above the learners' present level.
i + 1公式表示包含略高于学习者当前水平的结构的输入。