第五，一点建议：根据我们这些学员的特点和实际，建议学习的课程更集中一些，重点是看、听、说。

Last, a modest proposal. According to the characteristics and situation of students like us, I suggest that the courses be more centralized, with focus on reading, listening and speaking.

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根据中国教育网的这些特点提出了该有向网络的演化模型，模型反映了中国教育网的一些主要特征。

According to these features, the evolvement model of this complex directed network has been proposed. This model reflects some main characteristics of the China Education network.

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