（六）违反规定不及时退还保证金的；
（六）积极开展科普志愿服务活动。高校应支持师生组建科普志愿服务团队，常态化深入中小学、社区、乡村等开展科普志愿服务。建立激励机制，支持高校科技专家参与中小学科技教育有关课程资源开发、联合教研、师资培训，担任中小学科学副校长或科技导师等，推动优质科普资源下沉。
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checks was a thing of the past—"digital substitute" documents or image-based
After shooting to international fame as a Russian spy in drama series The Americans, Rhys said he was often mistaken for being American and Russian because of his long list of on-screen roles.
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Blazing Speed: The 100x average improvement means route calculations, especially for longer journeys, are now dramatically faster.
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