You are managing a 24*7 database. The backup strategy for the database is to perform user-managed backups. Identify two prerequisites to perform the backups.（） [" The database must be opened in restricted mode."," The database must be configured to run in ARCHIVELOG mode."," The tablespaces are required to be in backup mode before taking the backup."," The tablespaces are required to be in read-only mode before taking the backu"]
屋面防水卷材平行屋脊的卷材搭接缝，其方向应（） ["顺流水方向","垂直流水方向","顺年最大频率风向","垂直年最大频率风向"]
A system has a mirrored data volume group that has a filesystem /data of 10 logical partitions. How many physical partitions will the filesystem have?（） ["1","2","10","20"]
丈夫为妻子购买的终身寿险保单，在离婚时，以下做法相对而言最不合理的是（）。 ["可以选择退保，两人各自领取退保现金价值的50%","选择将保单转让给被保险人（女方），原投保人获得50%的现金价值","保单继续由投保人持有，并且不参与财产分割","保单转让中由被保险人指定新的受益人"]
如何进行餐饮组织创新？其形式有哪些？
土壤粘着性
