It proposes a reference model, which can achieve the service of personalized learning information. It explains the key elements in the model composition.
提出了实现个性化学习信息服务的参考模型，并描述了模型中的关键构成要素。
It proposes a reference model, which can achieve the service of personalized learning information. It explains the key elements in the model composition.
提出了实现个性化学习信息服务的参考模型，并描述了模型中的关键构成要素。
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