Which two QoS statements are true about the use of the SDM QoS wizard？ （） [" Business-critical traffic includes VoIP and voice signaling packets."," SDM can be used to configure a basic QoS policy for incoming traffic on WAN interfaces and IPsec tunnels."," SDM can provide QoS for real-time traffic and business-critical traffic."," SDM creates a custom-queuing （CQ） or a priority-queuing （PQ） policy."," SDM creates a low latency queuing （LLQ） service policy with its associated classes."," When allocating bandwidth， values can be entered in either bandwidth percentage or kilobytes per second （kBps）."]
关于空冷器泄漏，下列处理错误的是（） ["如泄漏不大无须处理","如有副线，切除空冷维持生产","接蒸汽掩护","全开水冷循环水出口阀"]
海蚀作用？海蚀地貌类型？
Refer to the exhibit. The command spanning-tree guard root is configured on interface Gi0/0 on both switch S2 and S5. The global configuration command spanning-tree uplinkfast has been configured on both switch S2 and S5. The link between switch S4 and S5 fails. Will Host A be able to reach Host B？（） ["Yes. Traffic can pass either from switch S6 to S3 to S2 to S1， or， from switch S6 to S5 to S2 to S1","No. Traffic will pass from switch S6 to S5 and dead-end at interface Gi 0\/0","No. Traffic will loop back and forth between switch S5 and S2","Yes. Traffic will pass from switch S6 to S3 to S2 to S1","No. Traffic will either pass from switch S6 to S5 and dead-end， or traffic will pass from switch S6 to S3 to S2 and dead-end"]
已知水泥必须消耗量是41200t，损耗率是3%，那么水泥的净用量是（）t ["39964","42436","40000","43474"]
在新的形势下，必须全面推进素质教育，提高教育教学（），进而提高全民族的（）文化素质。
