MLSC RMM is divided into two: one is the learning object model; the other is the learning resource base model.

RMM分两个层次：第一层是学习对象模型层，第二层是学习资源库模型层。

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MLSC RMM is divided into two: one is the learning object model; the other is the learning resource base model.

RMM分两个层次：第一层是学习对象模型层，第二层是学习资源库模型层。

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