1. 选基准：随机选一个元素作为基准(pivot)
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，这一点在safew官方版本下载中也有详细论述
This means no screening is recommended for other high-risk groups of men such as:
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
（三）明知是赃物而窝藏、转移或者代为销售的；