[单选] 质量检验记录是（）的证据。

理解教育法律规范对于教育立法和教育法的实施有哪些重要意义？ 请简述保证保险的特点答：保证保险是在被保证人的行为或不行为致使被保险人（权利人）遭受经济损失时，由保险人来承担经济赔偿责任的保险。特点： Users at the Charleville Company began experiencing high network delays when Internet connectivity was enabled for all users. After investigating the traffic flow, you determine that peerto-peer traffic from a music download site is consuming a large amount of bandwidth. Which QoS mechanism can you implement to improve the network response time?（） Use CBWFQ to queue the peer-to-peer traffic into the default traffic class.。 Use class-based WRED to randomly drop the peer-to-peer traffic during network congestions.。 Use class-based policing to limit the peer-to-peer traffic rate.。 Use class-based shaping to delay any excessive peer-to-peer traffic. Answer: C。 制造膜片压力表的膜片，通常用（） 铁。 不锈钢或不锈耐酸钢。 锌。 铜。 原材料盘盈又无法查明原因，正确的处理方法是报经批准后将其（）。 增加其他业务收入。 增加营业外收入。 冲减管理费用。 冲减销售费用。 质量检验记录是（）的证据。