压力一定时,关小出口阀,油品出口流速会提高。
A. 正确
B. 错误
不能对个别幻灯片内容进行编辑修改的视图方式是()。
A. 大纲视图
B. 幻灯片浏览视图
C. 幻灯片视图
D. 以上三项均不能
下列关于《联合国国际货物多式联运公约》说法正确的有()。
A. 多式联运经营人不是发货人的代理人或代表
B. 以推定过失原则来确定联运人的赔偿责任
C. 采用统一责任制,否定网状责任制
D. 联运人不得对不是他履行的那部分运输不负责
You set the recovery window to seven days and the backup optimization to ON using the CONFIGURE command of Recovery Manager (RMAN). The most recent backup of the TOOLS tablespace to disk was taken on January 3. The TOOLS tablespace is readonly. On February 21, when you execute a command to back up all the tablespaces to disk, you find that RMAN backs up the TOOLS tablespace also, even though the contents of the tablespace have not changed after the backup on January 3. Because there are no changes made to the TOOLS tablespace, you decide that the tablespace should not be backed up by RMAN. What can you to do skip backing up the TOOLS tablespace without changing the current backup optimization setting?()
A. configure a default device for RMAN backups
B. temporarily disable the retention policy for RMAN backups
C. configure automatic channel allocation for RMAN backups
D. use the CONFIGURE command to reconfigure the recovery window to 60 day