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总书记的大国“城”思

总书记的一周（7月14日—7月20日）

三个首次突破，凸显我国外贸韧性活力

小视频 | 上海市中心花鸟市场时隔5年回归？不便宜、品类少……或许这儿更注重的是新鲜体验

好物齐刷刷丨赫希里和牛汉堡

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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