Which of the following are prerequisite steps to transport a database？（）
AQuery the V$TRANSPORTABLE_PLATFORMS view in the source database to determine if the intended destination is listed.
BVerify that there are no restrictions or limitations that the source or destination database may encounter.
CVerify that the source and destination have the same Oracle version critical updates，patch-set version，and patch- set exceptions.
DDetermine if you will perform the conversion on the source or destination platform.
ENone of the above.
发送一封主题为“生日快乐”的电子邮件，内容为“祝您生日快乐”李明，并将我的文档中的music.mid文件以附件的形式一起发送E-mail:lp@sina.com。
患儿女，7岁。低热、轻咳3周。查体：体温38.5℃，营养差，左背下部听诊呼吸音减低，接种过卡介苗，PPD试验（+++）。其弟弟3岁，无症状，但PPD试验（+++），胸片正常，宜采取的措施是（）
A、口服异烟肼6个月
B、注射丁胺卡那2周
C、口服利福平6个月
D、口服利福平+异烟肼6个月
E、口服利福平+异烟肼4个月
Which three tasks can be performed using a duplicate database? （）(Choose three.)
ATesting the backup and recovery procedures
BTesting the upgrade of an Oracle database to a new release
CTesting the effect of an application changes on database performance
DContinuously updating archive log files from the target database to support failover
在Excel2010的工作表中，若要对一个区域中的各行数据求平均值，应使用（）函数。
对于RMON的管理信息库，以太网的统计信息包括哪些分组？