Excuse me , would you please explain to me the necessary procedures for nullifying the tax registration?
请问如何办理税务登记注销手续?
This aversity to double-stranded RNA means short hairpins can be used to knock out the messengers, thus nullifying the signal from the underlying gene.
机体对双链RNA的排斥性意味着可以利用短发卡RNA破坏信使RNA,从而阻断相应基因的信号传递。
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