简述步兵组成。
市卫生局对流行性传染病患者进行强制隔离属于行政处罚措施。
一种位于游戏到工作这一连续演变过程中间的一种制度体系化的竞争性体育活动是（） ["大众体育","竞技体育","体育运动","学校体育"]
Which three statements are true about policing？（） ["Out-of-profile packets are queued.","It causes TCP retransmits.","Marking and remarking are not supported.","It does not respond to BECN and foresight messages.","It uses a single- and two-bucket mechanism for metering."]
简述陆军组成。
What’s PHB？
