Which two statements are true about the various methods of implementing QoS？（） ["Cisco AutoQoS can be used repeatedly to apply a single QoS policy to multiple interfaces.","Cisco AutoQoS includes an optional web-based GUI for automating the configuration of QoS services.","Cisco AutoQoS provides capabilities to automate VoIP deployments.","The auto qos global configuration command is used to configure Cisco AutoQoS.","The Modular QoS CLI （MQC） is the best way to fine tune QoS configurations.","The SDM QoS wizard is the fastest way to implement QoS."]
关于DS18B20以下叙述正确的是（） ["是美国DALLAS公司推出的单线数字温度传感器","温度值是通过输出端直接输入到CPU，无需A\/D转换","具有温度测量精确，不受外界干扰的优点","可以通过数据线提供能量"]
Refer to the exhibit. Which statement is true about where trust boundaries should be established in a network？（） [" Endpoint 1 is the only acceptable place to establish a trust boundary."," Endpoint 1 is the optimal place to establish a trust boundary. Endpoints 2 and 3 are acceptable places to establish a trust boundary."," Endpoint 2 is the only acceptable place to establish a trust boundary."," Endpoint 2 is the optimal place to establish a trust boundary. Endpoints 1 and 3 are acceptable places to establish a trust boundary."," Endpoints 1 and 2 are optimal places to establish a trust boundary. Endpoint 3 is an acceptable place to establish a trust boundary."," Endpoints 2 and 3 are optimal places to establish a trust boundary. Endpoint 1 is an acceptable place to establish a trust boundary."]
MPLS label headers for packet media consist of（）. ["Version","Label","COS\/EXP","TTL","S flag"]
有4种债券A、B、C、D面值均为1000元，期限都是3年。其中A以单利每年付息一次，年利率为8%；债券B以复利每年付息一次，年利率为4%；债券C以单利每年付息两次，每次利率是4%；债券D以复利每年付息两次，每次利率是2%。假设投资者认为未来3年的年折算率为r=8%，试比较4种债券的投资价值。
简述《尸语故事》的思想内容和艺术特点
