Carefully consider the features of an effective visual aid after reviewing course materials.

复习完课程材料后，仔细思考“有效的视觉辅助教材有哪些特征”这一问题。

youdao

Carefully consider the features of an effective visual aid after reviewing course materials.

复习完课程材料后，仔细思考“有效的视觉辅助教材有哪些特征”这一问题。

youdao