Wednesday Apr 12, 2023
上周六,中国国务院新闻办公室,召开新闻发布会,公布自己的新冠病毒溯源研究结果。这场发布会的背景是什么?中国公布的结论可靠么?新冠病毒到底是从哪爆发的?它是实验室制造的,还是来自于自然界?科学家们是如何进行新冠溯源研究的?
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