Use your own reasoning. Don't stop even if the formula is too large just try to solve it manually.
对场所进行检查的，经县级以上人民政府公安机关负责人批准，使用检查证检查；对确有必要立即进行检查的，人民警察经出示人民警察证，可以当场检查，并应当全程同步录音录像。检查公民住所应当出示县级以上人民政府公安机关开具的检查证。，这一点在同城约会中也有详细论述
You can choose how long you want to share where you are.。旺商聊官方下载对此有专业解读
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