求翻译：在远程教学中，学习诊断是一项重要的学习支持服务。学习诊断的关键环节是实现准确高效地获取学习者的知识状态，并在此基础上，网络教学系统才能判断学习者的学习障碍，并有针对性的给学习者提供进一步的学习内容。是什么意思？

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In the long-distance teaching, the study diagnosis is an important study support service.The study diagnosis key link is the realization highly effective gains learner's knowledge condition accurately, and in this foundation, the network teaching system can judge learner's study barrier, and has poi

Distance education, learning diagnosis is an important learning support services. Diagnosis is the key link of learning for accurate and efficient access to learner's knowledge State and on this basis, network teaching system to judge the learner's learning disability, and targeted to the learners w

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