单项选择题

Youhaveareadonlytablespaceonreadonlymedia.Youwanttoperformamediarecoveryontheexistingdatafiles，butusingabackupcontrolfile.Thebackupcontrolfileindicatesthatthestatusofthereadonlytablespacewasread/writewhenthecontrolfilewasbackedup.Whatshouldyouconsider？（）
A.dropthereadonlytablespaceandrecreatethetablespaceafterrecovery
B.takedatafilesfromthereadonlytablespaceofflinebeforeperformingarecovery
C.performarecoverystatusofthetablespaceincontrolfilewillbechangedautomatically
D.recoveryusingbackupcontrolfileisnotpossible，sorestoreallthefilesfromthelastfulldatabasebackup，andthenopenthedatabase

A.Youwanttoperformamediarecoveryontheexistingdatafiles，butusingabackupcontrolfile.Thebackupcontrolfileindicatesthatthestatusofthereadonlytablespacewasread/writewhenthecontrolfilewasbackedup.Whatshouldyouconsider？（）
A.dropthereadonlytablespaceandrecreatethetablespaceafterrecovery
B.takedatafilesfromthereadonlytablespaceofflinebeforeperformingarecovery
C.performarecoverystatusofthetablespaceincontrolfilewillbechangedautomatically
D.recoveryusingbackupcontrolfileisnotpossible，sorestoreallthefilesfromthelastfulldatabasebackup，andthenopenthedatabase

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问答题

选取Excel2003当前工作表中的所有单元格的方法是( )。

A.按Ctrl+A键
B.单击工具栏中相应的按钮
C.单击“全选”按钮
D.按Ctrl+E键
E.使用“编辑”菜单的“全选”命令

单项选择题

YoulostthePRODSTDtablespace，whichwasread／write.Thetablespacewasreadonlywhenthelastbackupwasperformed.Howwouldyourecoverthetablespace？（）

A.restorethetablespacefromthebackupthereisnoneedtoapplytheredoinformation
B.restorethefulldatabasetorecoverthedatauptothepointwhenyouperformedthebackup
C.restorethetablespacefromthebackup，andthenperformarecoveryusingthebackupcontrolfile
D.restorethetablespacefromthebackup，andthenrecoverthetablespacealltheredoinformationfromthepointwhenthetablespacewasmaderead/writeisapplied