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.
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Фото: Stringer / Reuters，详情可参考体育直播
事實上，他很少出國——據報導——與妻子、六個子女和許多孫輩住在德黑蘭市中心一個簡樸的院落裡。
从后向前扫描已排序部分，找到插入位置，元素后移腾出空间