下列情况中，不属于特别重大质量事故的是（）。 ["一次死亡30人以上","严重影响使用功能或工程结构安全，存在重大质量隐患的","直接经济损失达500万元及其以上的","由于质量事故，造成人员死亡或重伤3人以上"]
You decided to change the location of the flash recovery area. You executed the following command： ALTER SYSTEM SET DB_RECOVERY_FILE_DEST=’+disk1’ SCOPE=BOTH SID=’*’； Which statement is true？（） [" The location can be changed only if the flash recovery area is empty."," After executing the command， all new flash recovery area files will be created in the new location."," The command will generate an error because you cannot change the flash recovery area while the database is open."," All the existing files in the flash recovery area will be moved to the new location and all new Flash Recovery Area files will be created in the new location."]
简要叙述市场法评估机器设备的主要步骤。
男性，18岁，行甲状腺切除术后3d，体温正常，换药时发现伤口针眼处皮肤发红，稍肿胀。正确的处理方法是（） ["应拆除有关缝线","70％乙醇湿敷","拆除缝线敞开引流","10％一20％鱼石脂外敷","0.1％雷佛奴尔湿敷"]
电动机所产生的转矩在任何情况下，总是由轴上的负载转矩和（）之和所平衡。 ["静态转矩","加速转矩","减速转矩","动态转矩"]
赫兹接触假设
