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新华网北京频道
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北京海淀:中关村地区科技文化季启动
新华网北京4月24日电(记者任超)24日,“海淀区航天日主题活动暨中关村地区科技文化季启动仪式”在位于北京市海淀区中关村街道的“‘两弹一星’在海淀”主题展馆举行。
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