It designs two-kind models: the content component model and the sequencing strategy component model.

主要设计了两大类构件模型：内容教学构件模型和编列策略构件模型。

youdao

It designs two-kind models: the content component model and the sequencing strategy component model.

主要设计了两大类构件模型：内容教学构件模型和编列策略构件模型。

youdao