As educational technology artifacts with intensive knowledge and information, Greatcourse and e-learning resources now are absence of instructional efficiency and usability.
作为一种知识和信息量密集型的教育技术产品，现有国家精品课程及其网络资源在教学有效性和可用性方面还存在缺失。
As educational technology artifacts with intensive knowledge and information, Greatcourse and e-learning resources now are absence of instructional efficiency and usability.
作为一种知识和信息量密集型的教育技术产品，现有国家精品课程及其网络资源在教学有效性和可用性方面还存在缺失。
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