You have a read-only tablespace on read-only media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read-only tablespace was read/write when the control file was backed up. What should you consider？（） take data files from the read-only tablespace offline before performing a recovery。 recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the database。 drop the read-only tablespace and re-create the tablespace after recovery。 perform a recovery； status of the tablespace in control file will be changed automatically。
年采出量与地质储量之比称为（） 采油指数。 采出程度。 采油速度。
工程量清单中所列工程量的变动，丝毫不会降低或影响合同条款的效力，可以部分免除承包人按规定的标准进行施工和修复缺陷的责任。（注：也不免除承包人按规定的标准进行施工和修复缺陷的责任。）
幼儿园各项规章制度的核心（） 部门性规章制度。 全园性规章制度。 会议制度。 岗位责任制。
In which situations will the ASM metadata backup help you recover the ASM disk in a disk group？（） when one or more file directory paths are accidentally deleted from an ASM disk group。 when one of the disks in a disk group is accidentaly unplugged。 when the data file on an ASM disk group gets corrupted。 when one or more disks in an ASM disk group are lost。
在安装夹板阀过程中，阀门必须保持（）位置。
