PAC learning model is the fundamental of computational learning theory, it provides a probabilistic framework for the study of learning and generalization.
而PAC学习模型是计算学习理论的基础，它为研究学习及泛化问题提供了一种基本的概率框架。
Abstract: : the study of learning habits is one of the important factors in the study of human feelings and wills.
摘要：学习习惯的研究是人类情意研究的重要因素之一。
The study of learning strategies is one of the most important parts of the study of SLA.
学习策略研究是第二语言习得研究领域的重大课题之一。
The study of learning habits is one of the important factors in the study of human feelings and wills.
学习习惯的研究是人类情意研究的重要因素之一。
The study of learning strategy provides some effective methods for different subjects in teaching and learning English.
学习策略的研究，对各学科的教学和学习提供了一些有效的学习方法。
The study of learning strategy provides some effective methods for different subjects in teaching and learning English.
学习策略的研究，对各学科的教学和学习提供了一些有效的学习方法。
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