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US Department of Homeland Security。关于这个话题，safew官方版本下载提供了深入分析
A widespread bacterial defence system called SNIPE is shown to localize to the cell membrane, where it identifies and cleaves the DNA of infecting phage as it is injected into the bacterial cell.，更多细节参见搜狗输入法下载
Джо Байден. Фото: Стрингер / РИА Новости