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一个问题如果在计算机上可以快速解决,那么它属于P类问题;如果一个解可以快速验证,那么它属于NP类问题。
The robustness of topological states against local perturbations is a testament to the power of topology in protecting quantum information.
唯一能让你成为领导者的是你的行动。
Speech is a kind of action, and our words are the tools we use to perform it.