... 3 理论基础：自我导向学习理论 自我导向学习（Self—directed Learning）理论由 学习研究专家艾伦·塔夫（Allen Tough）于1966年首次提出。他认为自我导向学习是由学习者制定计划和引导学习活动进行的自我学习。
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Ms. Allen, Mr. Allen's sister, said in the email that the diagnosis is 'tough news for Paul and the family. '
乔迪•艾伦在电子邮件里表示，诊断结果对保罗和全家都是难以接受的消息。
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Damian Allen, executive director for children and family services, said it was "an immensely tough decision for us to take" but was unavoidable.
BBC: Flagship Huyton ?25m school 'may shut'
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