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教学活动具有“不确定性”和“确定性”。“不确定性”是指教学活动是一种“人为”活动,“是一个变化的领域,而变化总是偶然的,其中不可避免地具有一
Teaching activities have ”Uncertainty “ and ”Certainty “. ”Uncertainty “ refers to the teaching activity is a ”human “ activity, ”is a changing area, and change is always accidental, which inevitably has a