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Good library information services depend on the high quality of a library resources system.
图书馆良好的信息服务有赖于高质量的文献资源体系。
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PBL education must be backed with high quality education resources.
构建优质教学资源是PBL教学的保障；
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PBL education must be backed with high quality education resources.
构建优质教学资源是PBL教学的保障；
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