（九）接到要求制止违反治安管理行为的报警后，不及时出警的；
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// get the register at the given key。谷歌浏览器下载是该领域的重要参考
from this list, the two reasonable options are either DFAs (best choice if you can compile ahead of time) or lazy DFAs (great for both random user input and large regexes). NFAs are just not competitive in reality, and backtracking engines are a security nightmare.，更多细节参见哔哩哔哩