证券信用评级的功能是（） 降低信用投资风险。 降低信用评级筹资成本。 有利于规范交易与管理。 能够提供借贷行为风险程度的信息。
Which statement correctly describes a wireless client Layer 2 roam from AP1 to AP2 while joined to a multicast stream using Cisco WLC running v5.2?（） Client issues an IGMP join after association with AP2, allowing AP2 to request a multicast stream from Cisco WLC after AP1 issues an IGMP query.。 Client issues an IGMP join after association with AP2, allowing AP2 to request a multicast stream from Cisco WLC independent of AP1 multicast member status.。 Client resumes multicast after association with AP2, because multicast information is sent in mobility exchanges and AP2 is already a member of the multicast group, provided that another client has already joined that multicast.。 Client resumes multicast after association with AP2, because multicast information is sent in mobility exchanges and AP2 is already a member of the multicast group, regardless if any other clients have already joined that multicast.。
人格形成的影响因素
下列属于运动技能的是（）。 体操技能。 写字技能。 作图技能。 规则技能。 操作仪器技能。
在生产经营单位的安全生产工作中，最基本的安全管理制度是（）。 安全生产奖励制度。 安全生产承包责任制。 安全生产责任制。
Which two components are unique to controller-based wireless installations？ （）
