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守望绿水青山

这八个字，被习近平当作座右铭

各地举行活动铭记历史缅怀先烈

小视频 | 「视频」新的风暴已经出现，怎么能够停滞不前，穿越时空竭尽全力，北会来到你身边~

千城百县看中国｜食鲁味：皂李酱蹄香百年传承长

小视频 | 哈尔滨工业大学和香港中文大学，研发了一款形似“毒液”的磁性黏液机器人，形态多变，能轻松穿越仅1.5毫米的细缝，为治疗脑血管堵塞等疾病带来新希望。相关成果发表于《先进功能材料》。新华每日电讯

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