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4997.【2020.04.24】继往开来！中国航天日到来，习近平给参与“东方红一号”任务的老科学家回信
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2023/3/23
读书人是幸福人
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4997.【2020.04.24】继往开来！中国航天日到来，习近平给参与“东方红一号”任务的老科学家回信
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